Abstract：Separable connectors are frequently equipped in 10~35kV MV power distribution systems. And the quality control is really important for them. This paper focuses on the commissioning test technology for them after installation, such as installation technology knowhow and commissioning test requirements. A practical tooling solution is proposed for application in commissioning tests, which enables the cable connectors to be effectively tested after installation. So, it becomes easier to check out electrical defects after installation and to avoid test failures due to improper installation.