With the increasing popularity of blockchain in recent years, smart contract has gradually attracted people’s attention. Smart contract is a piece of code that can automatically run, allowing developers to develop personalized according to specific protocol, business or logic, while the decentralized and distributed features of blockchain provide a sound platform for the application of smart contract. Firstly, the architecture and development of blockchain and smart contract are elaborated. Aiming at the military aviation missile business registration scenario, the super ledger is used as the development platform to propose the smart contract design scheme based on the blockchain, and the smart contract development, deployment and commissioning are carried out for the airtightness inspection of an aviation missile. Finally, the security analysis on the effectiveness, security and privacy protection means of the smart contract is carried out to provide reference for the application of blockchain technology and smart contract in the army.