v3.26.3
Cover Page
 12 Months Ended
May 31, 2026
shares
Document Information [Line Items]  
Document Type 20-F
Amendment Flag false
Document Period End Date May 31, 2026
Document Fiscal Year Focus 2026
Document Fiscal Period Focus FY
Entity Registrant Name NEW ORIENTAL EDUCATION & TECHNOLOGY GROUP INC.
Entity Central Index Key 0001372920
Current Fiscal Year End Date --05-31
Entity Well-known Seasoned Issuer Yes
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
Entity Voluntary Filers No
Entity Shell Company false
Entity Emerging Growth Company false
Entity Interactive Data Current Yes
Entity Common Stock, Shares Outstanding 1,549,068,783
Document Accounting Standard U.S. GAAP
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One No. 6 Hai Dian Zhong Street
Entity Address, City or Town Beijing
Entity Address, Postal Zip Code 100080
Entity Address, Country CN
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Document Registration Statement false
Entity File Number 001-32993
ICFR Auditor Attestation Flag true
Auditor Name Deloitte Touche Tohmatsu Certified Public Accountants LLP
Auditor Firm ID 1113
Auditor Location Beijing, the People’s Republic of China
Document Financial Statement Error Correction [Flag] false
Business Contact [Member]  
Document Information [Line Items]  
Entity Address, Address Line One No. 6 Hai Dian Zhong Street
Entity Address, City or Town Beijing
Entity Address, Postal Zip Code 100080
Entity Address, Country CN
Contact Personnel Name Zhihui Yang
Contact Personnel Email Address yangzhihui@xdf.cn
City Area Code 86 10
Local Phone Number 6090-8000
Common Stock [Member]  
Document Information [Line Items]  
Trading Symbol 9901
Title of 12(b) Security Common shares
ADR [Member]  
Document Information [Line Items]  
Trading Symbol EDU
Title of 12(b) Security American depositary shares, each representing ten common shares
Security Exchange Name NYSE