The storage of paddy under quasi-low temperature with phase change energy storage material was tested to solve the problem ofgrain damage caused by high temperature inside silos in summer and theget- hot-grain surface. Three different kinds of silo， which weregeneral silo No.29， heat-insulation-treated silo No.30 and silo No.31 made of phase change energy storage material， were chosen for contrast experiment. The temperatures inside of the silos and on thegrain surface were measured with the change of outside temperatures. The results showed that for silo No.31 both the temperatures inside of the silo and on thegrain surface were the lowest， further more they hardly changed with the outside temperature. The silo can control the temperatures both inside of the silo and on the surface of grain effectively， thereforegrain storage by quasi-low temperature is realized.