The existing quantitative pump cannot meet the multi-stage flow of single pump output. In order to solve the problem of different flow levels of the traditional hydraulic system, the variable pump and control of valve and auxiliary components were used to meet the working condition requirements. The multi-output radial piston pump was a new hydraulic component designed according to the "double stator theory". It utilized its structural specificity to achieve output flow diversity. According to the principle of force balance and the principle of crank-slider mechanism, the kinematics of multi-output radial piston pump was analyzed. By analyzing the flow pulsation of the pump under different working modes, the working mode with minimum flow pulsation was determined. Theoretical analysis showed that the flow pulsation curve of the non-adjacent two columns of plungers was similar to the output flow pulsation curve of the adjacent two columns of plungers, and the curve periodicity of the different working modes was related to the periodicity of the single column plunger curve. When the pump output maximum flow, the pulsation amplitude and pulsation period of the oil flow were much smaller than the single output. Using the pump prototype, the principle experiment of the pump was carried out. The experimental results showed that the actual flow rate of the pump was continuously decreasing as the pump outlet pressure was increased. However, due to limited processing conditions, the machining accuracy of some parts cannot be guaranteed, resulting in experimental results. The theoretical analysis did not match, and the experimental data analysis verified the correctness of the principle and structural rationality of the pump, which laid a foundation for the research and development of the radial piston pump in the future.