Shower heat cycle system with little energy consumption

The invention discloses a shower heat cycle system with little energy consumption, and belongs to the field of energy-saving water heater devices. The shower heat cycle system comprises a water source heat pump unit (1) and a hot water container (2), wherein the water source heat pump unit (1) comprises an evaporator (5), a compressor (3) and an expansion roof (4); the compressor (3) is connected with the refrigerant side of the evaporator (5) and connected with a condenser (6) heating for the hot water container (2) by a refrigerant pipeline. The shower heat cycle system is characterized in that the top of a kitchen (7) and/or a bathroom (8) is provided with a capillary pipe network (9) communicated with a heat recovery device (11) for shower hot water, the heat recovery device (11) for shower hot water is arranged below a shower unit (10) and communicated with a water inlet of the evaporator (5), and a water outlet of the evaporator (5) is communicated with the capillary pipe network (9). The shower heat cycle system with little energy consumption can make full use of indoor heat and shower heat and satisfy use requirements for hot water in any season with good energy saving effect.