The invention discloses a hot water type solar energy and air energy combined heat and power generation integrated system which comprises a water storage box, a first water pump, a solar heat collector, a low-position side heat exchanger, a compression and expansion difunctional machine head, a permanent magnet electric power generation integrated motor, a high-position side heat exchanger, an expansion valve, a working medium pump and a second water pump. Air cooling is adopted by the low-position side heat exchanger, one port of a low-position side heat exchanger working medium side passes through the compression and expansion difunctional machine head to be connected to one port of a high-position side heat exchanger working medium side, two bypasses are connected to the other port of the high-position side heat exchanger working medium side and the other port of the low-position side heat exchanger working medium side in parallel, opening or closing of the valve is adjusted, solarenergy and air energy can achieve heating in the heating period and power generation in the non-heating period, and the building requirement for hot water supplying all year around is met; the air source heat pump cost is low, installation is simple, the energy efficiency is high, environmental protection is achieved, the preheating time is short, the indoor temperature requirement can be quicklymet, and the hot water type solar energy and air energy combined heat and power generation integrated system is suitable for supplementary heat sources of a solar heating system.