Abstract: Aiming at the problem that students have difficulty understanding the working principle of the DC servo motor control system during the teaching process, a DC servo motor control system was developed. The experimental system is based on LabVIEW software for the design of the host computer interface and the writing of the microcontroller control program. STM32 single-chip microcomputer and related chips are used to form the single-chip microcomputer control system hardware. DC motors and encoders are used instead of DC servo motors to realize motor speed control acquisition and PID control principle display. By using this system, PID parameters can be adjusted in real time and the motor speed curve can be obtained. It is easy to realize PID parameter tuning and secondary development, thereby deepening students’ understanding and comprehension of the principle of DC servo motor control.