An improved sensorless control strategy was proposed for switched reluctance drive (SRD). By calculating the fluxlinkage of each phase, key rotor positions were captured. According to observed key rotor positions, the rotor position was reconstructed by the proposed algorithm. Accordingly, a closedloop rotor speed control strategy was designed for the sensorless control. Experimental results showed that the proposed rotor position estimation algorithm achieved high accuracy and could be used for wide rotor speed range. The senseless closedloop control strategy achieved fast dynamic response and good robusteness.