It is currently vitally need to conduct research and build considerable efforts for Robot or the robotic arm of the lower volume(small size, high quality, high efficiency). MATLAB software was used to design an articulated robotic arm test system, construct mathematical models for the system, perform numerical simulations, and perform PID optimization on the system. Simulation results demonstrate that, in accordance with synchronized control and PID optimization, this system has the advantages of strong driving capability for the hydraulic drive system as well as high positioning accuracy for the motor drive system. It also demonstrated high tracking accuracy and high speed of response for the input signal of a large load and has realized a combination servo drive of a smaller amount heavy articulated robotic arm of fast high-precision.