A study of the division of structural systems in the West Qinling and its adjacent region and their evolution is made. First, we have the tectonic systems prior to the Indosinian movement. Next we come to the major Meso-Cenzoic systems which can be divided into the E-W-trending. N-S-trending, NE-trending,NWN-trending systems and an arcuate system. Last, we have a discussion of the history of their deformation and interrelation, and origin.