The hemispherical resonator gyro (HRG) is a new solid state vibrating gyro that offers high precision,high reliability, and a long life. It has broad application prospects in the aerospace field. This study analyzesthe main factors affecting the working life of the HRG, proposes measures to improve the working life of gyroscopes,conducts long-term continuous gyroscope life tests, and verifies the long-term performance of the main indicatorsof the HRG. The results show that the HRG has a stable performance and a working life of as many as 20years during long-term electrification, thus meeting the application requirements of long-term space missions, suchas deep-space detectors.