Hot water supplying device with solar ground source heat pump

A hot water supplying device with a solar ground source heat pump comprises a heat pump mechanism, a heat preservation water tank and a hot water tank, wherein the heat preservation water tank is communicated with the hot water tank. The heat pump mechanism comprises a compressor, a condenser, a throttling device and an evaporator, wherein the compressor is connected with the condenser and the evaporator, the condenser is connected with the evaporator via the throttling device, and the evaporator is connected with a heat exchanger buried underground; the heat pump mechanism further comprises a solar energy heat collecting mechanism and a central control unit, the solar energy heat collecting mechanism comprises a first temperature sensor, a solar energy collection board and a first circulating pump which are connected in sequence, wherein the first temperature sensor is connected with the heat preservation water tank, and the first circulating pump is communicated with the heat preservation water tank via a pipeline and a first electromagnetic valve; the condenser is connected with the heat preservation water tank via a second temperature sensor and with the heat preservation water tank via a second circulating pump and a second electromagnetic valve respectively; a third temperature sensor is arranged inside the heat preservation water tank; and the central control unit is connected with the temperature controllers, the circulating pumps and the electromagnetic valves respectively. The utility model can make full use of the renewable energy and the running cost.