Stimulated reservoir volume fracturing is the key technology for effective development of shale gas，which uses hydraulic force to create hydraulic fracture and connect natural fracture. But it is not capable of increasing the permeability of shale matrix. As a result，some problems still exist in shale gas wells such as short valid period，fast production decline，etc. The products of reductive environment in shale deposition such as organic matter and pyrite were analyzed and the adsorption ability of organic matter was measured. The effects of organic matter and pyrite oxidation on gas transmission were discussed，and the geological conditions and engineering feasibility of oxidative stimulation to increase shale permeability were analyzed. Results shows that shales generally have organic matter and pyrite and other reductive contents that can be easily oxidized. Oxidation of organic matter and pyrite in shale can affect shale gas transmission capacity. Organic acid can be generated after organic matter oxidization and its solution pH can be as low as 3 after the oxidization，which can dissolve calcite and other carbonate minerals. Oxidation has been used in superheated steam drilling，elimination of filter cake，fracturing fluid breaking glue，thermal recovery production processing，sterilization，etc. These applications provide important experience to engineering application of oxidative stimulation in shale gas reservoir. By using oxidation to stimulate organic-rich shale reservoir，the organic matter and pyrite and some carbonate minerals can be consumed，which brings about the formation of dissolution pore and seam and high temperature and high pressure environment. This can change the mineral composition，pore structure and adsorption/desorption characteristics of the shale reservoir. Therefore，the goal of reforming shale gas reservoir can be achieved.