The multi-channel light source driver adopts high-precision constant current source technology and high-precision temperature control technology. It can drive 16 light source devices at the same time with the light source test tooling. Through the host computer software, it can realize the independent parameter setting and parameter reading of each device; equipped with temperature acquisition module, it can collect temperature at the same time. It is convenient to set up the automatic test system of the light source and suitable for the aging test and performance test of the semiconductor light source.