A method of initial position angle estimation for switched reluctance motor is presented based on the pulse current linear triangular model.Firstly,the motor phase inductance is partitioned, the initial partition of the rotor is estimated by comparing the peak value of each phase pulse current. Second, the envelope of the each partition pulse current peak is linearized, and composition triangle, using the mathematical knowledge of triangle, the mathematical model between pulse current peak value and initial position angle is obtained.Thirdly,the measured pulse current peak are substituted into the mathematical model,and the rotor initial position angle is calculated. Last,the experimental results show that the proposed sensorless control methods is sufficiently accurate and works effective.