| Cover | Sep. 28, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 28, 2022 |
| Entity File Number | 001-38767 |
| Entity Registrant Name | DATASEA INC. |
| Entity Central Index Key | 0001631282 |
| Entity Tax Identification Number | 45-2019013 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 20th Floor, Tower B, Guorui Plaza |
| Entity Address, Address Line Two | 1 Ronghua South Road |
| Entity Address, Address Line Three | Technological Development Zone |
| Entity Address, City or Town | Beijing |
| Entity Address, Country | CN |
| Entity Address, Postal Zip Code | 100176 |
| City Area Code | +86 |
| Local Phone Number | 10-56145240 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 par value |
| Trading Symbol | DTSS |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
