Aiming at the controllable excitation linear synchronous motor (CELSM) magnetic levitation system, an interval type-2 fuzzy control strategy is proposed to improve the system performance. Based on the structural characteristics and control principle of the CELSM magnetic levitation system, the mathematical model is established. The interval type-2 fuzzy controller is designed to realize the control of the CELSM magnetic levitation system. The error of the air gap height of the magnetic levitation platform and its change rate are used as the input of the controller. The membership function uses a triangular function, and nine fuzzy control rules are established for fuzzy reasoning. Finally, the Nie-Tan (NT) order reduction algorithm is used to obtain the system output. According to the control system structure, the simulation model is built in MATLAB software. Simulation results show that the CELSM magnetic levitation system with interval type-2 fuzzy control has the advantages of good starting performance and strong anti-interference ability.