Aiming at the problem of large torque ripple in direct torque control (DTC) of permanent magnet assisted synchronous reluctance motor (PMASynRM), a deadbeat direct torque control (DB-DTC) scheme based on PMASynRM is proposed. The concept of effective flux is introduced into PMASynRM, so as to extract the rotor position information and apply it to DB-DTC, which improves the operation performance of the motor. The deadbeat torque control model based on stator field orientation is established to effectively simplify the calculation and suppress the torque ripple. The improved deadbeat direct torque and flux control (DB-DTFC) model is built based on MATLAB/Simulink. Simulation results show that the algorithm can effectively reduce the flux and torque ripple and has good dynamic and steady-state performance.