Abstract: Optical tracking device is one of the major ground based measurement instument in target field mapping system. Its main function is to stably track various targets such as flying object and spacecraft. The insturment can accurately measure and record these tracks and flight attitude. Since the instrument is a precise optical device, its technical specifications such as tracking performance, angle measurement accuracy and image quality have a great impact on the successful completion of the measurement. In order to timely detect problems in the device and ensure the effective monitoring, we have developed a dynamic testing device. This paper introduces the basic principle of dynamic testing in laboratory conditions, and the simulation results are provided. The analysis and calculation for the actual accuracy of the detection device are carried out based on engineering design. Finally, It is concluded that the target angle error better than 5（RMS,1）is achieved and the new design can meet high-precision dynamic testing requirement in laboratory conditions.