The invention discloses an algorithm protection method based on go language, belonging to the field of information security. The invention relates to an algorithm protection method based on go language, which is used for protecting the algorithm in intelligent contract. The method comprises the following steps: compiling an algorithm library source file by go language; The algorithm library sourcefile is compiled to generate the corresponding algorithm dynamic library file and the API function prototype of the algorithm dynamic library file. Upload the intelligent contract and algorithm dynamic library files to docker, deploy and initialize the intelligent contract; The intelligent contract is written in go language, and the algorithm part of the intelligent contract is realized by calling the API interface of the algorithm dynamic library file. Deploying includes specifying the call path of the algorithm dynamic library file in the docker in the smart contract; Initializing includesdynamically invoking the API interface of the algorithm dynamic library according to the invocation path to load the algorithm dynamic library. The invention does not need to make any modification tothe original deployment flow of the intelligent contract, and is easy to realize.