UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2021

Commission File Number: 000-51469

BAIDU, INC.

Baidu Campus

No. 10 Shangdi 10th Street

Haidian District, Beijing 100085

The People’s Republic of China

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☒            Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

EXPLANATORY NOTE

Exhibit 5.2 to this current report on Form 6-K is incorporated by reference into the registration statement on Form F-3 of Baidu, Inc. (File No. 333-249314) and shall be a part thereof from the date on which this current report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.

EXHIBIT INDEX

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: August 19, 2021

Exhibit 5.2

SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP

ONE MANHATTAN WEST

NEW YORK, NY 10001

TEL: (212) 735-3000

FAX: (212) 735-2000

www.skadden.com

August 19, 2021

Baidu, Inc.

Baidu Campus

No. 10 Shangdi 10th Street

Haidian District, Beijing 100085

People’s Republic of China

Re: Baidu, Inc. — Registration Statement on Form F-3

Ladies and Gentlemen:

We have acted as special United States counsel to Baidu, Inc., an exempted company with limited liability incorporated under the laws of the Cayman Islands (the “Company”), in connection with the public offering of an aggregate of US$300,000,000 principal amount of the Company’s 1.625% Notes due 2027 (the “2027 Notes”) and an aggregate of US$700,000,000 principal amount of the Company’s 2.375% Notes due 2031 (the “2031 Notes”, and together with the 2027 Notes, the “Notes”) to be issued under the base indenture, dated as of November 28, 2012 (the “Base Indenture”), as supplemented by the supplemental indenture, to be dated as of August 23, 2021 (the “Tenth Supplemental Indenture,” and together with the Base Indenture, the “Indenture”) between the Company and The Bank of New York Mellon, as trustee (in such capacity, the “Trustee”).

This opinion is being furnished in accordance with the requirements of Item 601(b)(5) of Regulation S-K under the Securities Act of 1933 (the “Securities Act”).

In rendering the opinions stated herein, we have examined and relied upon the following:

We have also examined originals or copies, certified or otherwise identified to our satisfaction, of such records of the Company and such agreements, certificates and receipts of public officials, certificates of officers or other representatives of the Company and others, and such other documents as we have deemed necessary or appropriate as a basis for the opinions stated below.

In our examination, we have assumed the genuineness of all signatures, including electronic signatures, the legal capacity and competency of all natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as facsimile, electronic, certified or photocopied copies, and the authenticity of the originals of such copies. As to any facts relevant to the opinions stated herein that we did not independently establish or verify, we have relied upon statements and representations of officers and other representatives of the Company and others and of public officials, including the factual representations and warranties contained in the Underwriting Agreement.

We do not express any opinion with respect to the laws of any jurisdiction other than the laws of the State of New York.

As used herein, “Transaction Documents” means the Underwriting Agreement, the Indenture and the Note Certificates.

Based upon the foregoing and subject to the qualifications and assumptions stated herein, we are of the opinion that when the Note Certificates are duly authenticated by the Trustee and issued and delivered by the Company against payment therefor in accordance with the terms of the Underwriting Agreement and the Indenture, the Note Certificates will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms under the laws of the State of New York.

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The opinions stated herein are subject to the following qualifications:

(a)    we do not express any opinion with respect to the effect on the opinions stated herein of any bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer, preference and other similar laws or governmental orders affecting creditors’ rights generally, and the opinions stated herein are limited by such laws and orders and by general principles of equity (regardless of whether enforcement is sought in equity or at law);

(b)    we do not express any opinion with respect to any law, rule or regulation that is applicable to any party to any of the Transaction Documents or the transactions contemplated thereby solely because such law, rule or regulation is part of a regulatory regime applicable to any such party or any of its affiliates as a result of the specific assets or business operations of such party or such affiliates;

(c)    except to the extent expressly stated in the opinions contained herein, we have assumed that each of the Transaction Documents constitutes the valid and binding obligation of each party to such Transaction Document, enforceable against such party in accordance with its terms;

(d)    we do not express any opinion with respect to the enforceability of any provision contained in any Transaction Document relating to any indemnification, contribution, non-reliance, exculpation, release, limitation or exclusion of remedies, waiver or other provisions having similar effect that may be contrary to public policy or violative of federal or state securities laws, rules or regulations or to the extent any such provision purports to, or has the effect of, waiving or altering any statute of limitations;

(e)    we call to your attention that irrespective of the agreement of the parties to any Transaction Document, a court may decline to hear a case on grounds of forum non conveniens or other doctrine limiting the availability of such court as a forum for resolution of disputes; in addition, we call to your attention that we do not express any opinion with respect to the subject matter jurisdiction of the federal courts of the United States of America in any action arising out of or relating to any Transaction Document;

(f)    we have assumed that any agent of service will have accepted appointment as agent to receive service of process and call to your attention that we do not express any opinion if and to the extent such agent shall resign such appointment. Further, we do not express any opinion with respect to the irrevocability of the designation of such agent to receive service of process;

(g)    we call to your attention that the opinions stated herein are subject to possible judicial action giving effect to governmental actions or laws of jurisdictions other than those with respect to which we express our opinion;

(h)    we do not express any opinion with respect to the enforceability of any provision contained in any Transaction Document providing for indemnity by any party thereto against any loss in obtaining the currency due to such party under any Transaction Document from a court judgment in another currency; and

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(i)    to the extent that any opinion relates to the enforceability of the choice of New York law and choice of New York forum provisions contained in any Transaction Document, the opinions stated herein are subject to the qualification that such enforceability may be subject to, in each case, (i) the exceptions and limitations in New York General Obligations Law sections 5-1401 and 5-1402 and (ii) principles of comity and constitutionality.

In addition, in rendering the foregoing opinions we have assumed that, at all applicable times:

(a)    the Company (i) was duly incorporated and was validly existing and in good standing, (ii) had requisite legal status and legal capacity under the laws of the jurisdiction of its organization and (iii) has complied and will comply with all aspects of the laws of the jurisdiction of its organization in connection with the transactions contemplated by, and the performance of its obligations under, the Transaction Documents to which the Company is a party;

(b)    the Company had the corporate power and authority to execute, deliver and perform all its obligations under each of the Transaction Documents to which the Company is a party;

(c)    neither the execution and delivery by the Company of the Transaction Documents to which the Company is a party nor the performance by the Company of its obligations thereunder, including the issuance and sale of the Notes: (i) conflicted or will conflict with the memorandum and articles of association of the Company, (ii) constituted or will constitute a violation of, or a default under, any lease, indenture, agreement or other instrument to which the Company or its property is subject (except that we do not make the assumption set forth in this clause (ii) with respect to those agreements or instruments expressed to be governed by the law of the State of New York which are listed in Part II of the Registration Statement or the Company’s Annual Report on Form 20-F for the year ended December 31, 2020), (iii) contravened or will contravene any order or decree of any governmental authority to which the Company or its property is subject, or (iv) violated or will violate any law, rule or regulation to which the Company or its property is subject (except that we do not make the assumption set forth in this clause (iv) with respect to the laws of the State of New York); and

(d)    neither the execution and delivery by the Company of the Transaction Documents to which the Company is a party nor the performance by the Company of its obligations thereunder, including the issuance and sale of the Notes, required or will require the consent, approval, licensing or authorization of, or any filing, recording or registration with, any governmental authority under any law, rule or regulation of any jurisdiction.

In addition, we note that (a) the enforceability in the United States of the waiver in Section 16.14 of the Base Indenture by the Company of any immunities from court jurisdiction and from legal process is subject to the limitations imposed by the U.S. Foreign Sovereign Immunities Act of 1976 and (b) the designation in Section 16.13 of the Base Indenture of any U.S. federal or New York State court located in the Borough of Manhattan, The City of New York, as the venue for actions or proceedings relating to the Base Indenture and the Securities is (notwithstanding the waiver in Section 16.13) subject to the power of such courts to transfer actions pursuant to 28 U.S.C. § 1404(a) or to dismiss such actions or proceedings on the grounds that such a federal court is an inconvenient forum for such actions or proceedings.

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We hereby consent to the reference to our firm under the heading “Legal Matters” in the Preliminary Prospectus and the Prospectus. In giving this consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the Rules and Regulations. We also hereby consent to the filing of this opinion with the Commission as an exhibit to the Company’s Current Report on Form 6-K being filed on the date hereof and incorporated by reference into the Registration Statement. This opinion is expressed as of the date hereof unless otherwise expressly stated, and we disclaim any undertaking to advise you of any subsequent changes in the facts stated or assumed herein or of any subsequent changes in applicable laws.

Very truly yours,

/s/ Skadden, Arps, Slate, Meagher & Flom LLP

5

Exhibit 99.1

Baidu Announces Pricing of US$1 Billion Notes Offering

BEIJING, China, August 18, 2021 /PRNewswire/ — Baidu, Inc. (Nasdaq: BIDU; HKEX: 9888) (“Baidu” or the “Company”), a leading AI company with strong Internet foundation, today announced the pricing of its public offering of US$1 billion aggregate principal amount of its notes. The public offering consists of US$300 million of 1.625% notes due 2027 and US$700 million of 2.375% notes due 2031. The notes have been registered under the U.S. Securities Act of 1933, as amended, and are expected to be listed on The Stock Exchange of Hong Kong Limited.

The Company expects to receive net proceeds from the offering of approximately US$0.99 billion, after deducting underwriting discounts and commissions and estimated offering expenses. The Company intends to use the net proceeds from the offering for general corporate purposes, including repayment of certain existing indebtedness. In addition, the Company plans to use an equivalent amount of the net proceeds to finance or refinance, in whole or in part, one or more of its new or existing Eligible Projects, pursuant to its Sustainable Finance Framework. This framework will be made available to investors via Baidu’s Corporate ESG website: esg.baidu.com.

The joint bookrunners of the offering are Goldman Sachs (Asia) L.L.C., BofA Securities, Inc., J.P. Morgan Securities LLC and China International Capital Corporation Hong Kong Securities Limited. The co-manager of the offering is BOCOM International Securities Limited.

The Company has an effective shelf registration statement on Form F-3 (including a base prospectus) on file with the United States Securities and Exchange Commission (the “SEC”) and has filed a related preliminary prospectus supplement with the SEC for the offering of the notes. When available, the final prospectus supplement for the offering of the notes will be filed with the SEC. The offering is being made only by means of the prospectus supplement and accompanying base prospectus. Before you invest, you should read the prospectus supplement and accompanying base prospectus and other documents that the Company has filed with the SEC for more complete information about the Company and the offering. You may obtain these documents free of charge by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, the Company or any underwriter or dealer participating in the offering will arrange to send an investor the prospectus supplement and accompanying base prospectus if the investor makes such request by calling Goldman Sachs & Co. toll-free at 1-866-471-2526, BofA Securities, Inc. at 1-800-294-1322, J.P. Morgan Securities LLC collect at 1-212-834-4533 or China International Capital Corporation Hong Kong Securities Limited at +852-2872-2000.

This announcement is not an offer of the securities for sale in the United States of America and shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of, these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. The securities referred to herein have not been and will not be registered under the applicable securities laws of any jurisdiction outside of the United States of America.

About Baidu

Founded in 2000, Baidu’s mission is to make the complicated world simpler through technology. Baidu is a leading AI company with strong Internet foundation, trading on the NASDAQ under “BIDU” and HKEX under “9888.” One Baidu ADS represents eight Class A ordinary shares.

Safe Harbor Statement

This announcement contains forward-looking statements. These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as “may,” “will,” “expects,” “anticipates,” “future,” “intends,” “plans,” “believes,” “estimates,” “confident,” “is/are likely to” and other similar expressions. Among other things, the description of the proposed offering in this announcement contains forward-looking statements. Baidu may also make written or oral forward-looking statements in its periodic reports to the SEC, in its annual report to shareholders, in press releases and other written materials and in oral statements made by its officers, directors or employees to third parties. Statements that are not historical facts, including but not limited to statements about Baidu’s beliefs and expectations, are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties. A number of factors could cause actual results to differ materially from those contained in any forward-looking statement, including but not limited to the following: Baidu’s proposed use of proceeds from the sale of debt securities; its operations and business prospects, its business and operating strategies and its ability to implement such strategies, its ability to develop and manage its operations and business, competition for, among other things, capital, technology and skilled personnel, its ability to control costs, its ability to identify and conduct investments and acquisitions, as well as integrate acquired target(s), changes to regulatory and operating conditions in the industry and geographical markets in which we operate, its dividend policy. Further information regarding these and other risks is included in Baidu’s annual report on Form 20-F, Form F-3 and other documents filed with the SEC. Baidu does not undertake an obligation to update any forward-looking statement, except as required under applicable law. All information provided in this press release is as of the date of the press release, and Baidu undertakes no duty to update such information, except as required under applicable law.

Contacts

Investors Relations, Baidu, Inc.

Tel: +86-10-5992-8888

Email: ir@baidu.com