The invention discloses a circulating water mattress, and belongs to the field of daily living equipment. The circulating water mattress includes a mattress, a bending water pipe is arranged in the mattress, and a first water tank, a second water tank, and a lifting device are arranged, wherein connectors of the two ends of the bending water pipe are connected with the first water tank and the second water tank respectively, the lifting device includes a rack body, a lifting transmission device, a first lifting rack, and a second lifting rack, the first water tank and the second water tank arerespectively fixed to the first lifting rack and the second lifting rack, and the lifting transmission device is connected with the first lifting rack and the second lifting rack. According to the circulating water mattress, height difference between the water tanks and mattress realizes flowing of circulating water, a water pump is not needed during water circulation process, generated noise isvery small, even if there is no electricity the circulating water mattress can be used, adaptability is strong, and convenience and practicability are realized.