Document and Entity Information
12 Months Ended
Mar. 31, 2018
Document and Entity Information  
Document Type 20-F
Amendment Flag false
Document Period End Date Mar. 31, 2018
Entity Registrant Name Global Cord Blood Corp
Entity Central Index Key 0001467808
Current Fiscal Year End Date --03-31
Document Fiscal Year Focus 2018
Document Fiscal Period Focus FY
Entity Filer Category Accelerated Filer
Entity Common Stock, Shares Outstanding 120,824,742
Entity Well-known Seasoned Issuer No
Entity Current Reporting Status Yes