| Cover | Oct. 12, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | to correct the disclosure concerning related party relations |
| Document Period End Date | Oct. 12, 2023 |
| Entity File Number | 333-228803 |
| Entity Registrant Name | TANCHENG GROUP CO., LTD. |
| Entity Central Index Key | 0001753391 |
| Entity Tax Identification Number | 38-4086827 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | No. 32 Hexizhuang Village, Huili Township |
| Entity Address, Address Line Two | Jiaocheng County |
| Entity Address, City or Town | Lvliang City, Shanxi Province |
| Entity Address, Country | CN |
| Entity Address, Postal Zip Code | 030500 |
| Country Region | 86 |
| City Area Code | 139 |
| Local Phone Number | 1097-2765 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
