Solar energy heat pump water heater

The invention relates to the field of solar energy heat pump water heater, and provides a solar energy heat pump water heater. The solar energy heat pump water heater comprises a solar thermal collector, a separated-type box body communicated with the solar thermal collector and a heat pump component installed in the installation box body. The heat pump component comprises a compressor, a condenser, a throttle valve and an evaporator which are connected end to end sequentially. The box body comprises a first cavity and an installing cavity which are arranged vertically; and a second cavity is further formed in the first cavity. The solar thermal collector is communicated with the first cavity, and the solar thermal collector and the first cavity form a communication loop, and the second cavity are communicated with a water outlet and a water inlet in the box body sequentially. The compressor and the throttle valve are installed in the installing cavity; the condenser is installed in the first cavity; and the