In order to solve the outstanding problems in the quality information management of military equipment, the method of using blockchain to manage the quality information of technical equipment is proposed. This paper analyzes three kinds of problems in current equipment quality information management, discusses the feasibility of using blockchain technology in equipment quality information management, and establishes a distributed equipment quality information management model based on blockchain and analyzes its security. The results show that under the premise of ensuring the safety and reliability of equipment quality information, the model can effectively improve the efficiency and level of equipment information management, and better meet the needs of equipment quality information in the future battlefield.