A spaceborne Visible light camera imaging simulation system based on OpenGL is presented. It is mainly used to simulate the scenes when the spaceborne visible light camera is observing other space objects and output simulation images. The simulation system not only can provide image data for space object detection and tracking, but also can provide technical support for the design and performance evaluation of spaceborne cameras. The 3ds Max software is used to establish the precise three-dimensional model for a space object and vest it with material properties. The satellite Toolkit is used to predict the orbital parameters of both the space object and the camera. The star catalog is used to provide the parameters such as the position, magnitude and proper motion of a star against the starry background. In the Open Graphics Library, the scenes when the spaceborne visible light camera is observing a space object are established and the observing effectiveness of the spaceborne visible camera is simulated. The result shows that the simulation system has its higher simulation degree and rendering speed. It can be used to implement the rendering of the observing imaging effectiveness of both point objects in deep space and short distance area objects in real time.