With the rapid development of the performance of the range observation targets, the performance requirements of the range observation equipment also show a trend of diversification, intelligence, high mobility, high precision and automation. In order to realize the photoelectric theodolite measurement scheme without landing on the unfixed test ground, a fast mobile measurement platform without landing is designed, and its vibration parameters are measured in this paper. The experimental results show that the energy transferred from the servo system to the base is very small under the excitation of angular acceleration below 20°/s2 in the measurement mode without landing. The influence of motor excitation load on the platform can be ignored, and the resonance response occurs.