▎ 摘　　要

NOVELTY - Method for preventing laser gyro gas leakage based on surface chemical vapor deposition growth of graphene, involves (a) performing magnetron sputtering plating copper or nickel with a thickness of several nm in the region where the cavity length control mirror needs to grow graphene, (b) adopting a chemical vapor deposition method to grow graphene, and (c) adopting a vacuum shield method to detect helium leakage rate before and after using the treatment method. USE - The method is useful for preventing laser gyro gas leakage based on surface chemical vapor deposition growth of graphene. ADVANTAGE - The method utilizes excellent gas barrier properties of graphene, and has stable performance and simple operation, and is economical, and ensures prolonged shelf life of the laser gyroscope.