Document and Entity Information - shares	6 Months Ended
	Jan. 31, 2020	Feb. 19, 2020
Document And Entity Information
Entity Registrant Name	Bio-Matrix Scientific Group, Inc.
Entity Central Index Key	0001079282
Document Type	10-Q
Document Period End Date	Jan. 31, 2020
Amendment Flag	false
Current Fiscal Year End Date	--07-31
Is Entity's Reporting Status Current?	No
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		7,808,867
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2020
Entity Small Business?	true
Entity Shell Company?	false
Entity Emerging Growth Company?	false