This paper introduces a virtual simulation platform based on Appdesinger in MATLAB. This simulation platform is designed by referring to the basic principles of mechanical engineering control, so that operators can better use computer software for experiments and simulation analysis. The simulation platform is a control theory electronic simulation test box and computer control technology experiment platform as the basis, combined with MATLAB simulation and simulation circuit, can be simulated experiments. For mechanical, hydraulic, electrical and other physical systems, the description of their mathematical models is basically the same, you can use analog circuits to carry out simulation experiments, so as to design this simulation platform according to this principle. At the same time, the simulation platform combined with modern computer simulation experiment means, the operator does not need to spend a lot of time to arrange the experimental equipment, only need to modify the corresponding parameters in the simulation platform to complete the corresponding experimental tasks. The simulation platform includes time-domain analysis, frequency-domain analysis, stability analysis and steady-state error analysis, which basically meet the requirements of operators.