The invention discloses an intelligent contract operation code coverage rate calculation method and system. The method comprises the steps that when a source code file of an intelligent contract is obtained, a deployment request is sent to a blockchain, and thus the blockchain can deploy the intelligent contract according to the deployment request and return a contract address of the intelligent contract; according to the contract address of the intelligent contract returned by the blockchain, identification information of the intelligent contract is obtained, a transaction request which contains the identification information is constructed, the transaction request is sent to the blockchain, and thus the blockchain can output a corresponding statistical result file to a preset storage medium according to the identification information of the transaction request; according to the identification information, the statistic result file is obtained in the storage medium, and according to the statistic result file and a preset formula, the intelligent contract coverage operation code rate is calculated. The method and system simplify the calculation process of the intelligent contract coverage rate and improve the calculation precision of the intelligent contract coverage rate.