In order to solve the problems of complex experimental operation and tedious data processing in micro-thrust measurement system, a data processing system for micro-thrust and micro-impulse measurement was designed based on Matlab platform. The basic principle and test operation method of torsion pendulum method for measuring thrust and impulse are introduced, the characteristics of original data are analyzed, and the data processing flow is sorted out. The results show that the system can directly calculate the displacement and time information in the original experimental data into thrust data, which can simplify the operation process and improve the efficiency of field measurement.