Middle Yangtze Area is epicontinental basin in middle Permian, according to stratigraphic, lithofacies and sedimentary facies analysis, the thickness of Middle Permian is Gradually thinning from south to north, lithofacies Showed a gradient relations from south to north by the shallow marine limestone to the bathyal and deep-sea siliceous limestone, siliceous rock changes, depth of sedimentary water is Gradually becomes deeper from south to north. microfacies analysis showed widely developed calcirudite in the study area is sedimentary transported instead of differential compaction causes. Qixia suffered extensive transgression in the middle Permian, in the northern margin of the middle Yangtze is the outer ramp – deep water basin, in the main middle Yangtze craton is ramp deposition, some area is carbonate platform facies, western Hubei trough is outer ramp; Maokouan transgression is aggravated, the northern margin of the middle Yangtze is deep basin and the compensation is extended. Ramp remains in the main middle Yangtze area, western Hubei becomes to deep water basin. platform - ramp – deep water basin from south to north build up a carbonate ramp depositional system in the study area, and is consistent with the regional tectonic framework. Syndepositional fault activity is a certain control element of the deposition in the study area, deposition of the northern margin of middle Yangtze basin is by the constraints of the South Qinling sea and under its control.