The ultra high pressure metamorphic (UHPM) rocks in the Dabie Shan suffered five generations of deformation during their formation and exhumation, and provide an important structural constraints to their exhumation. The first generation of deformation (D1) developed before the metamorphism of eclogite facies and are represented by the relic foliation composed of epidote, barroisite, quartz and phengite inclusions in garnets of eclogites. The D2 is preserved as the mylonitic zones on the margin of eclogite blocks and tight isoclinal folds of stratoid, tabular eclogites and their matrix, which developed after the peak metamorphism of eclogite facies. The D3 represented by the boudins of eclogites and the ductile shearing deformation of their matrix is approximately synchronized with the amphibolite facies retrogression. The shear sense in the D3 indicate an up to north thrusting. D4 developed under the metamorphic condition of green schist facies, and is shown by the ductile detachment shear zone and asymmetric tight to open folds in the UHPM rocks. D5 is brittle deformation, in which the UHPM rocks were cut by the NE trending strike slip faults. The exhumation process of the UHPM rocks can be understood by their deformation history with petrology and isotope chronology information. The continental crust on the north margin of the Yongtze plate underthrust to the mantle depth of more than 100km and suffered the UHP metamorphism of eclogite facies during the late Permian to the early Triassic, and then quickly exhumated to the shallow crust: at the first stage (220-210Ma), the UHPM rocks rapidly exhumatd to the bottom of the lower crust by the buoyancy of the subducted continental crust and developed the ductile deformation of eclogite facies; and then at second stage (200-180Ma), the UHPM rocks were extruded and overthrust northward to the middle crust; at last stage (130-110Ma), the uppermost crust over the UHPM rocks detached southward by the post collisional extension, the UHPM rocks further exhumated to the shallow crust. When approaching the earth surface, the UHPM rocks were cut by the NE-trending strike slip faults.