The invention discloses a body cleaner heating module which comprises a heater main body as well as a computer control board, a water inlet temperature sensor, a water outlet temperature sensor and a flowmeter, wherein the heater main body is internally provided with a heating tube; a water inlet and a water outlet are formed in two ends of the heating tube; a first insulating material capable of conducting heat is coated on the outer surface of the outer side of the heating tube; a heating circuit is printed on the surface of the first insulating material; a second insulating material is coated on the surface of the heating circuit; the water inlet temperature sensor is arranged at the water inlet; the water outlet temperature sensor is arranged at the water outlet; the flowmeter is mounted on the water inlet; the water inlet temperature sensor, the water outlet temperature sensor and the flowmeter are respectively connected with the computer control board; the heating circuit is electrically connected with the computer control board. By adopting the body cleaner heating module, sectional circuit real-time switching heating control is adopted, different heating circuits are switched according to different temperatures, the water outlet temperature consistency is ensured, and relatively good experience is brought to users.