This paper proposes the air-source heat pump heating system based on photovoltaic generation complementary with grid. Put forward the scheme of the air-source heat pump heating system for an office building and set up the actual system. The air-source heat pump heating system based on photovoltaic generation complementary with grid is tested. According to the testing results, when photovoltaic generation replaces the grid, the distortion rate of the current of the loads is small, the system can run smoothly. Quantitative data of the winter season were tested, such as water temperature of the water tank, air temperature of the heating room, and power consumption of the system. Comparing with traditional heating method, system operation efficiency improved significantly.