Cover Page	12 Months Ended
	Mar. 31, 2022 shares
Document Information [Line Items]
Document Type	20-F
Amendment Flag	false
Document Registration Statement	false
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Document Period End Date	Mar. 31, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity File Number	001-39177
Entity Registrant Name	Boqii Holding Ltd
Entity Central Index Key	0001815021
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Entity Address, Country	CN
ICFR Auditor Attestation Flag	false
Entity Incorporation, State or Country Code	E9
Document Accounting Standard	U.S. GAAP
Entity Address, Address Line One	Building 9, No. 388, Shengrong Road, Pudong
Entity Address, Address Line Two	New District
Entity Address, City or Town	Shanghai
Entity Address, Postal Zip Code	201210
Auditor Name	PricewaterhouseCoopers Zhong Tian LLP
Auditor Firm ID	1424
Auditor Location	Shanghai, the People’s Republic of China
Business Contact [Member]
Document Information [Line Items]
Entity Address, Country	CN
Entity Address, Address Line One	Building 9, No. 388, Shengrong Road, Pudong
Entity Address, Address Line Two	New District
Entity Address, City or Town	Shanghai
Entity Address, Postal Zip Code	201210
Contact Personnel Name	Yingzhi (Lisa) Tang
Contact Personnel Fax Number	180 1851 3366
Ordinary Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	68,747,320
Class A Ordinary Shares [Member]
Document Information [Line Items]
Title of 12(b) Security	Class A ordinary shares, par value US$0.001 per share
No Trading Symbol Flag	true
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding	55,709,591
Class B Ordinary Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	13,037,729
American Depositary Shares [Member]
Document Information [Line Items]
Title of 12(b) Security	American depositary shares, each ADS represents 4.5 Class A ordinary shares, par value US$0.001 per share
Trading Symbol	BQ
Security Exchange Name	NYSE