In order to verify the advantages of the PMASynRM with wide speed domain, and give full play to the output torque of the PMASynRM in the field weakening operation, a full speed domain control method based on torque prediction control was proposed. A PMASynRM was designed with Ansys, and cosimulated with Simulink. The results showed that the torque prediction control method could make the motor get good dynamic performance in the full speed area, and the PMASynRM still had excellent torque output capability under field weakening control.