The invention belongs to the technical field of food production equipment, and relates to a safe pressure steam sterilization pot high in residual heat utilization rate. The safe pressure steam sterilization pot comprises a sterilizing chamber and a steam generating chamber, wherein the sterilizing chamber and the steam generating chamber are separated by a partition board; steam enters the sterilizing chamber through through holes to perform sterilization on substances in the sterilizing chamber, so that the situation that the steam is in direct contact with the substances, and the substancesare damaged is avoided; a PLC control device is high in visual degree, and convenient to operate and observe, so that the safety performance is improved; a steam residual heat recovering device is arranged, so that after sterilization is completed, redundant steam can be pumped by a steam drawing device, after heat exchange is performed, the steam converts to liquid, then the liquid is returned to the steam generating chamber again, cyclic utilization is performed, cost is greatly saved, the recovered heat quantity can also be used for other foods which need heating or drying, the utilizationrate of residual heat is increased, and the effect of energy saving is achieved; the purpose of releasing pressure can also be achieved, and the situation that the redundant steam is directly exhausted by a pressure releasing valve, so that energy sources are wasted is avoided; and sliding rails are arranged, so that the sterilizing chamber is convenient to draw out, and articles are convenient to place and take out.