Abstract: In order to address the shortage of experimental teaching resources in China’s higher education reform and promote the construction of new engineering disciplines, a series electric load simulator for teaching has been designed. This simulator can simulate external loads on equipment such as machine tool spindles, CNC machine tools, and industrial robots in actual working environments, and effectively load the equipment through the given simulated working condition loading signal. It can help students better grasp theoretical knowledge in course experiments. The load simulator designed for teaching in this article consists of the following steps: firstly, the characteristics of the main driving forms are analyzed, and the overall configuration design of the loading device is determined; Secondly, based on functional requirements and overall plan planning, determine the structure and loading method of the simulator as series structure and electric loading; In the control system of the loading device, an explicit force controller based on fuzzy PID was constructed; Finally, a single degree of freedom constant load loading test was conducted based on a load simulator. The test results showed that the loading system had a small error in fixed value loading and could meet the needs of high-precision fixed value loading.