The invention relates to terminal equipment communication interface load capacity testing equipment with a communication module, which is commonly used in an intelligent electric power network, and particularly to an acquisition terminal equipment communication interface load capacity tester with the communication module. The acquisition terminal equipment communication interface load capacity tester settles the following problems in the existing manual test for acquisition terminal equipment communication interface load capacity: complicated method, and easy error generation. The acquisition terminal equipment communication interface load capacity tester is composed of a housing and a test circuit in the housing. The test circuit comprises the components of: a selective switching control circuit, a control MCU circuit, a signal driving circuit, a relay control circuit, a load switching circuit, a DC voltage measuring and display circuit, a voltage signal test interface and a load switching indicating circuit. The acquisition terminal equipment communication interface load capacity tester is particularly designed for requirement for the communication interface load capacity testing. Comprehensive measuring objects are realized, and common terminal equipment with communication module is included for satisfying requirement for testing load capacity of various communication interfaces in field. Automatic test process and simple operation are realized. Operation efficiency in testing is improved.