A non-contact surface force loading technology based on electromagnetic force loading was proposed for wings made of new composite soft materials. A drive coil made of multi turn copper wire was used to generate a strong magnetic field by passing a large current inside. The flexible coil was attached to the surface of the wing, and the current in the flexible coil interacted with the strong magnetic field to generate a relatively stable electromagnetic force on the surface of the wing. The direction of the electromagnetic force was changed by changing the current direction in the flexible coil, thereby achieving rapid tension and compression switching of wing loading force. A simulation calculation model for electromagnetic force loading had been established, and a design method for the mechanical loading platform had been provided. Based on its electromagnetic force loading principle, the characteristics of using flexible coils and thin iron sheets were analyzed. The influence of the number of driving coils and current direction on electromagnetic force was analyzed, and the influence of the distance between flexible coils and driving coils on electromagnetic force was further discussed. Mechanical loading test verification was carried out based on the experimental prototype. Simulation results shows that flexible coils have the advantage of better linearity and controllability of loading forces. Increasing the number of driving coils and making magnetic field opposite can effectively improve the electromagnetic force. The electromagnetic force test loading device was designed and produced. The loading force can last 320 s at 57 Newton.