In non-scanning laser 3D imaging system,there are many sub-systems (components)which need to run real-time according to a proper sequence.The main control part has the functions of sequence controlling,data collecting,result computing,communicating and interface controlling,and it is one of the core parts.According to the characteristics of DSP and FPGA,the combined structure of DSP and FPGA is adopted to implement the main control part.Automatic imaging is achieved and the frame rate reaches 25Hz.This contributes to the engineerization of the prototype.