The invention relates to the field of new energy application, and discloses a photovoltaic air source heat pump type hot water system. The system comprises a photovoltaic assembly, an air collecting pipe, an air source heat pump and a heat storing water tank, wherein the photovoltaic assembly comprises a side frame, a glass cover plate, a solar cell panel, thermal conductive silicone and a heat absorbing tube plate; the glass cover plate, the solar cell panel, the thermal conductive silicone and the heat absorbing tube plate are sequentially mounted in the side frame in an adhering manner; oneend of the air collecting pipe is in a closed state; one end of a ventilating and heat absorbing tube on the heat absorbing tube plate communicates with the wall of the air collecting pipe; an air inlet of the air source heat pump communicates with the other end of the air collecting pipe; the air source heat pump is electrically connected to the photovoltaic assembly; and the condensing end of the air source heat pump extends into the heat storing water tank. According to the system, a photovoltaic generations system is combined with the air source heat pump hot water system; the heat produced by the photovoltaic assembly is absorbed through an evaporator of the air source heat pump, and meanwhile, the electricity energy produced by the photovoltaic assembly is inversed into AC electricity for driving the air source heat pump system to work; and the evaporator is heated through hot air, so that the efficiency can be improved.