The concept,purpose as well as the components of vibration test are introduced，and a brief description of various tests is given. In addition, the weaknesses of infrared detector which can be examined by vibration test are elaborated. The sensors play a decisive role in ensuring the accuracy of test data. The installation method，installation angle and the control point selection of the sensors are mainly analyzed. The correct fixation mode of the sensor can reduce the static noise of the system from 0.105 mV to 0.019 mV. In the test, the single-point control of the sensor will lead to the amplification of some frequency point data of the detector by 22.9 times. The research and application of multi-point control can control the magnitude of vibration at 1.007 times, effectively ensuring the accuracy of the vibration test.