Based on the principle of vibration measurement by laser, a system of vibration measurement by laser in high temperature is built. Experiments are conducted to analyze the transferring effect of the connecting pole. In medium frequency, the transferring error is small and in high frequency it is large, and an appropriate simulating frequency is determined for vibration measurement experiment by laser. Compared with the referenced accelerometer, relative error of vibration measurement by laser and comparison method in high temperature is obtained, and the error influencing factors are analyzed. Experiments indicate that vibration measurement by laser can make up the shortage of accelerometer in high temperature, vibration measurement by laser in high temperature is stable and the measurement precision is high.