The invention provides a constant-temperature energy 
pressure sore-prevention 
cushion. The 
cushion comprises a 
cushion protection sleeve, a bag body 
assembly and a heating device; the bag body 
assembly comprises a backrest bag body, a cushion bag body, a water inlet, a 
heating power source interface box, a feeding port, a first vertical rib, a second vertical rib, a third vertical rib and a fourthvertical rib; the heating device comprises a heating wire, a 
flame-retardant spiral protective sleeve, a first wire, a second wire, a temperature sensor and an intelligent 
temperature control power source; the water filling the heating device is heated through the eating device, so that the water filling inside is heated and then acts on a 
human body, and therefore, bidirectional effects of heatstorage and auxiliary heat dissipation are realized, and a constant-temperature adjusting effect can be achieved; the stress area of the contact surface of a user is increased by utilizing the free deformation capacity of liquid, the pressure intensity of a contact part is reduced, the closing of capillaries is avoided to the maximum extent, and therefore, 
pressure sores are prevented; and on thebasis of the physiotherapy effect of 
far infrared ray generated by the heating wire, the 
microcirculation of the 
whole body of the user is improved, the 
vitality of the 
human body is improved, and a fatigue feeling generated by long-time sitting is reduced.