Exhibit 15.3

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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Shareholders and Board of Directors

Luckin Coffee Inc.

Xiamen, The People’s Republic of China

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We consent to the incorporation by reference in the Registration Statement on Forms S-8 (No. 333-232089 and No. 333-260577) of Luckin Coffee Inc. of our reports dated April 8, 2024, relating to the consolidated financial statements and the effectiveness of internal control over financial reporting of Luckin Coffee Inc., which appear in this Annual Report on Form 20-F for the year ended December 31, 2023.

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/s/ BDO China Shu Lun Pan Certified Public Accountants LLP

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Shanghai, The People’s Republic of China

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April 8, 2024