The heating load of building is more than cooling load in the cold area, such as north east area of China. The absorb energy from the ground in the winter is more than storage energy in the summer for using ground source heat pump (GSHP) system. This will result in low COP of system and unsteady running condition for heating. This paper introduces the heating system of solar heat associated GSHP which was applied successfully in 500 m2 building. The system is consist of three of ground source heat pumps, one of 17m2 of tracking solar heat collector, five 100 meter of underground heat exchanger wells, other measuring and controlling devices.
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