Abstract: In accordance with the data of deep seismic sounding,MT sectional structure,gravitymodel of the continental crust in the Xuefeng Area,as well as the interactive comprehen-sive interpretation and understanding of the field observations in the area,a series of mapsconcerning about the geometry of deep crustal structures and median rocks are preliminari-ly compiled in this paper.It is concluded as:(1)The Proterozoic underplating"drifted"micro-continental blocks(or sea mounts),and tectonomagmatic(metamorphic)dikeswarms formed under Palaeozoic collision and epeirogeny,and ductile(or brittle)pyroliticmasses accompanied with the Meso-Cenozoic intracontinental subduction must be occurredin the area.(2)Both the Paleozoic"mildly sutured"structure and the Meso-Cenozoic"in-tra-crustal squeeze"which were dominated by two different dynamic systems must havetaken place.(3)A group of deep-shallow thrusting sheets and asymmetric deformationfan-tectosomes is a key tectonic(division)domain in S.China orogenic zone.