| Cover | Nov. 29, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 29, 2021 |
| Entity File Number | 333-169805 |
| Entity Registrant Name | Kun Peng International Ltd. |
| Entity Central Index Key | 0001502557 |
| Entity Tax Identification Number | 32-0538640 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | Unit 2702, Building T1, The Han’s Plaza |
| Entity Address, Address Line Two | No. 2 Ronghua South Road |
| Entity Address, Address Line Three | Beijing Economic and Technological Zone |
| Entity Address, City or Town | Beijing |
| Entity Address, Country | CN |
| City Area Code | +86 |
| Local Phone Number | 10-87227012 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
