The utility model provides a bathing waste water waste heat utilization equipment, includes the drain pan, top cap, bathing water inlet tube of upper shed, heat exchanger and the water guide spare that is become by the body coiling, the heat exchanger includes top cap portion and cylindric somatic part, and the top cap position is in the intake antrum, and the cylindric somatic part encircles barrel portion, the connection position of top cap portion and cylindric somatic part lies in the breach, the water hole is relative with the cylindric somatic part down, have a plurality of supporting frame plate in the drain pan, supporting frame plate encircles the drain pan setting, supporting frame plate supports the lower extreme of the barrel portion of water guide spare, there is flow guide clearance between the cylindric somatic part of heat exchanger and the drain pan. Since adopt such structure, water guide spare and heat exchanger cooperation, the lower water hole on the water guide spare is relative with the heat exchanger, and on bathing water directly drenched the heat exchanger, heat exchange efficiency was high, on the other hand has flow guide clearance between the cylindric somatic part of heat exchanger and the drain pan, from top to bottom in proper order from the high -temperature water to the low temperature water contact, improved efficiency.