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Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2021
Mar. 15, 2022
Jun. 30, 2021
Document Information Line Items      
Entity Registrant Name IT Tech Packaging, Inc.    
Trading Symbol ITP    
Document Type 10-K    
Current Fiscal Year End Date --12-31    
Entity Common Stock, Shares Outstanding   99,049,900  
Entity Public Float     $ 44,007,387
Amendment Flag false    
Entity Central Index Key 0001358190    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
ICFR Auditor Attestation Flag false    
Document Annual Report true    
Document Transition Report false    
Entity File Number 001-34577    
Entity Incorporation, State or Country Code NV    
Entity Tax Identification Number 20-4158835    
Entity Address, Address Line One Science Park    
Entity Address, Address Line Two Juli Road    
Entity Address, Address Line Three Xushui District    
Entity Address, City or Town Baoding City    
Entity Address, Country CN    
Entity Address, Postal Zip Code 072550    
City Area Code (86)    
Local Phone Number 312-8698215    
Title of 12(b) Security Common Stock    
Security Exchange Name NYSE    
Entity Interactive Data Current Yes    
Auditor Name WWC, P.C    
Auditor Location San Mateo, California    
Auditor Firm ID 1171