One of the main factors that affect the results of ground motion prediction analysis is the existence of site effects. A site-and intensity-dependent ground-motion-prediction-model(attenuation form) is proposed to improve the results for seismic hazard analyses and damage assessments. Both the PGA and PGV attenuation relationships are developed according to the data collected from both the Taiwan Strong Motion Instrumentation Program(TSMIP) network and the Taiwan Rapid Earthquake Information Release System(TREIRS). The purpose of this study is to investigate the site classification criteria based on the site effects and the comparison with the borehole data {N, Vs) for the instrumental site of the ground motion arrays of CWB.