Abstract: Based on the OpenGL and Visual C++ software platform, and the theory of orbit dynamics, a moon exploration probe simulation and visualization system was developed, this system can dynamically simulate the space-time relationship between probe, earth and moon, calculate the probe position and attitude in real-time, 3D visualization technology was used to display the 3D graphics vividly. The main module design methods and the software architecture was discussed here, some problems encountered in the development progress are also discussed. Practical use of the system shows that it can help users to understand moon exploration process better.