DST analysis has been conductedfor three wells of HY-1, HY-2 and HY-3. To identify the optimum interpretation model for the fractured basement reservoir DST data were pre-analyzed extensively. Integration of the acquired DST data and identified interpretation model indicated that the hydraulic fracture model, dual-porosity model, and dual-permeability model were adequate as reservoir models for the three wells analyzed. Therefore, we can verify the connectivity and distribution of fracture of the reservoir at the vicinity of wells with the commercial well test analysis model of PanSystem (TM).