In this paper, a set of measuring methods for resonant frequency of the lifting mechanism of telemetry antenna is designed. By the test, the lowest resonant frequency of the lifting mechanism in the vertical direction is 12.82Hz, the lowest resonant frequency in the lateral direction is 25.64Hz, and the lowest resonant frequency in the front and rear direction is 38.46Hz. The resonance frequency of the telemetry antenna is about 18Hz, so the telemetry antenna lifting mechanism will not resonate with the antenna.