| Cover | Jul. 24, 2023 |
| Cover [Abstract] | |
| Entity Registrant Name | BioNexus Gene Lab Corp. |
| Entity Central Index Key | 0001737523 |
| Document Type | 8-K |
| Amendment Flag | false |
| Current Fiscal Year End Date | --12-31 |
| Entity Emerging Growth Company | true |
| Document Period End Date | Jul. 24, 2023 |
| Entity Ex Transition Period | false |
| Entity File Number | 333-229399 |
| Entity Incorporation State Country Code | WY |
| Entity Tax Identification Number | 35-2604830 |
| Entity Address Address Line 1 | Unit 02, Level 10, Tower B |
| Entity Address Address Line 2 | Vertical Business SuiteBangsar South |
| Entity Address Address Line 3 | 8 Jalan Kerinchi |
| Entity Address City Or Town | Kuala Lumpur |
| Entity Address Country | MY |
| Entity Address Postal Zip Code | 59200 |
| City Area Code | 60 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Local Phone Number | 1221-26512 |
| Security 12b Title | Common Stock, no par value |
| Trading Symbol | BGLC |
| Security Exchange Name | NASDAQ |
