A method for detecting states of secondary equipment in an intelligent transformer station comprises the following steps: firstly, preparing corresponding equipment detecting schemes to various types of secondary equipment, and compiling detecting scheme codes corresponding to the various types of secondary equipment, then detecting scheme codes to generate executable binary operation intermediate codes, reading binary intermediate codes in the equipment detecting schemes corresponding to the types of secondary equipment, running the binary intermediate codes on a virtual machine so as to obtain detected values of the secondary equipment, and judging the running state of the secondary equipment by the automatic system of the intelligent transformer station according to the detected values. After the adoption of the technology provided by the invention, flexible configuration of the equipment detecting schemes to different types of secondary equipment in the intelligent transformer station is achieved, a special equipment detecting scheme can be prepared at the aim of key equipment, the detection result has high accuracy, the reliability of the secondary equipment in the intelligent transformer station is improved, the application requirements of networked and intelligentized development of an electric power system are met, and the application prospect is favorable.