Cover - shares	3 Months Ended
	Mar. 31, 2022	Dec. 22, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2022
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2022
Current Fiscal Year End Date	--12-31
Entity File Number	000-30264
Entity Registrant Name	NETWORK CN INC.
Entity Central Index Key	0000934796
Entity Tax Identification Number	90-0370486
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	Unit 705B, 7th Floor
Entity Address, Address Line Two	New East Ocean Centre
Entity Address, Address Line Three	9 Science Museum Road
Entity Address, City or Town	TST
Entity Address, Country	HK
Entity Address, Postal Zip Code	00000
City Area Code	852
Local Phone Number	9625-0097
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	NWCN
Entity Current Reporting Status	No
Entity Interactive Data Current	No
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		20,749,018