Abstract: Based on the line heat resource model,this paper studied four inverting methods for borehole thermal resistance,the soilthermal conductivity and volume specific heat of borehole heat exchanger of the geothermal heat pump system. Inverting computationswere conducted based on thermal response test data. Results show that if only using the input and outlet water temperature data of theburied pipe to obtain above three parameters by some optimizing approach,two of them, that is borehole thermal resistance andvolumetric specific heat,may deviate from the physical reality. There still exists uncertainty if borehole thermal resistance or volumetricspecific heat is supplemented. If the water and borehole wall temperature are used to compute the borehole thermal resistance, and theborehole wall temperature is used to obtain thermal conductivity and volume specific heat in the inversion,result meets the realitybetter. It is recommended that the inlet and outlet water temperature and borehole wall temperature be recorded at the same time inthermal response test. Three measuring points should be set in the upper,middle and bottom of the buried pipe to record the temperatureof the hole wall.