A new type of Nd:Glass laser resonator was designed and demonstrated. With the corner cube array as the cavity back-end-mirror, the Nd:glass laser outputs 1.06 μm high energy laser pulse. The pulse energy is more than 500 J, the beam divergence angle is about 0.6 mrad, and the electro-optic efficiency is 2.3%. The output beam spot is not a series of approximate same-amplitude sub-pulses, but a high pulse in the middle with many lower pulses around it. Lastly, the experimental results are explained and discussed. The idea of beam coherent combination using the corner cube array resonator is put forward.