| Cover | Jul. 07, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 07, 2022 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-34577 |
| Entity Registrant Name | IT TECH PACKAGING, INC. |
| Entity Central Index Key | 0001358190 |
| Entity Tax Identification Number | 20-4158835 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | Science Park, Juli Road |
| Entity Address, Address Line Two | Xushui District |
| Entity Address, Address Line Three | Baoding City |
| Entity Address, City or Town | Hebei Province |
| Entity Address, Country | CN |
| Entity Address, Postal Zip Code | 072550 |
| City Area Code | 86 |
| Local Phone Number | 312-8698215 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.001 per share |
| Trading Symbol | ITP |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
