Exhibit 15.1

Our ref RHT/675098-000007/20214877v1

Boqii Holding Limited

6F, Building 1

No.399 Shengxia Road

Pudong New District

Shanghai

People’s Republic of China

July 22, 2021

Dear Sir and/or Madam

Boqii Holding Limited

We have acted as legal advisers as to the laws of the Cayman Islands to Boqii Holding Limited, an exempted limited liability company incorporated in the Cayman Islands (the “Company”), in connection with the filing by the Company with the United States Securities and Exchange Commission (the “SEC”) of an annual report on Form 20-F for the year ended 31 March 2021 (the “Annual Report”).

We hereby consent to the reference to our firm under the heading “Item 10. Additional Information—E. Taxation” in the Annual Report.

We consent to the filing with the SEC of this consent letter as an exhibit to the Annual Report. In giving such consent, we do not thereby admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, or under the Securities Exchange Act of 1934, in each case, as amended, or the regulations promulgated thereunder.

Yours faithfully

/s/ Maples and Calder (Hong Kong) LLP

Maples and Calder (Hong Kong) LLP