Abstract: The main aim of study on volcanic rocks of orogenic belts is to retrace the history of tectono magmatic evolution of orogenic belts Scanning the formation evolutionary histories of continental orogenic belts in both our country and whole workd,an orogenic belt has often undergone numerous and various tectono evolutionary stages,such as palaeo continental break up,ocean land transition,continental matching collision,intracontinental extension basin range coupling,new tectonic uplift(intracontinental orogeny),etc.,which are respectively companied with characteristic volcan-magmatism.We might ret racethe history of tectono-magmatic evolution of volcanic magmatismat different stages of formation-evolution of orogenic belts and fur her explore some important scientific problems of global dynamics and comparative planet ary dynamics by means of comparison in larger scales.