| Cover | Aug. 30, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 30, 2021 |
| Entity File Number | 333-99393 |
| Entity Registrant Name | Brownie’s Marine Group, Inc. |
| Entity Central Index Key | 0001166708 |
| Entity Tax Identification Number | 90-0226181 |
| Entity Incorporation, State or Country Code | FL |
| Entity Address, Address Line One | 3001 NW 25 Avenue |
| Entity Address, Address Line Two | Suite 1 |
| Entity Address, City or Town | Pompano Beach |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33069 |
| City Area Code | (954) |
| Local Phone Number | 462-5570 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
