We,for the first time,inverted the V_P and V_S velocity structure simultaneously in the Taiwan, China-Philippine archipelago subducting system from surface to 100km depth using 43933 P-wave events and 44667 S-wave events. Our tomographic results demonstrate the pattern of Eurasian Plate which subducts eastward from southwest of Taiwan, China to south of Luzon Islreas which reduces to 20~35km depth on its flanks. Our results could provide the evidence of the Philippine Plate subducts northwestward beneath northeast of Taiwan, China and Ryukyu Trench. Beneath Philippine archipelago,severe lithosphere deformation leading to an intensive magmatism and seismic activity can be seen in crust which can be ascribed to the bidirectional subduction of Eurasian Plate and Phillipine Sea Plate. Relative weak activity of the Philippine Sea Plate on East Luzon Trough which may be due to the collision and subduction of Benham Rise,in a sharp contrast that strong subduction occurs at the Philippine Trench which shifts southward with the depth increases. Our study suggests that structural heterogeneities in the crust and upper mantle along the Taiwan, China-Philippine archipelago subducting system play a crucial role in not only generations of earthquake and magmatism but also formation of the distinct tectonic framework.