The invention discloses a direct torque control method for a non-salient pole type hybrid excitation motor for an electric vehicle. According to the method, on the basis of a partition control strategy for the hybrid excitation motor, set values of a stator magnetic chain and excitation current are calculated by a maximum torque current ratio algorithm in different running regions; a switch table is inquired according to the set value of the torque, the set value of the magnetic chain and difference values of respective feedback values to select a voltage vector, thus a switching state of a PWM (pulse width modulation) inverter is controlled and the direct torque control over the hybrid excitation motor is realized. According to the direct torque control method, on the premise of guaranteeing the basic running characteristic of the hybrid excitation motor, the direct torque control over the hybrid excitation motor is realized, the control system algorithm is simplified, and the torque response speed of the motor is increased. Compared with the conventional direct torque control method, the method has the advantages that in different running regions, the set value of the stator magnetic chain is calculated according to the maximum torque current ratio algorithm, the reactive component of armature current is reduced, and the efficiency of the motor and the torque output capacity are improved.