Cover - shares	6 Months Ended
	Mar. 31, 2023	May 08, 2023
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2023
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--09-30
Entity File Number	001-37464
Entity Registrant Name	CEMTREX, INC.
Entity Central Index Key	0001435064
Entity Tax Identification Number	30-0399914
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	135 Fell Ct
Entity Address, City or Town	Hauppauge
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11788
City Area Code	631
Local Phone Number	756-9116
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		885,536
Common Stock [Member]
Title of 12(b) Security	Common Stock
Trading Symbol	CETX
Security Exchange Name	NASDAQ
Series 1 Preferred Stock [Member]
Title of 12(b) Security	Series 1 Preferred Stock
Trading Symbol	CETXP
Security Exchange Name	NASDAQ