In this paperwe have demonstrated a compact and simple design for LD end-pumped CW laser at 1052nm with Nd∶YAG crystal in the flat-curved cavity. The maximum output power of laser is 3. 5W at 1052nm when the absorbed pump ing power is 18W, and the optical-to-optical conversion efficiency is 20%. The threshold of the laser is about 0. 3W. The stability of output power is 3% within 2 hours.