In view of the unconventional shale gas has just started, faced with serious technology gap problems, through our technological innovation capability evaluation of petroleum, can clearly get the level of China's oil companies of technological innovation in terms of shale gas development, based on this, on the basis of conventional energy enterprise technological innovation ability evaluation index, on the basis of conventional energy enterprise technological innovation ability evaluation index, based on the construction of unconventional shale gas technological innovation ability evaluation index and gray fuzzy evaluation model; by Sinopec Jiang Han Oilfield Company technological innovation capability assessment, validation the scientific and feasibility of the model and the analysis and propose ways of enterprise technology innovation capability of petroleum development, provide the technical support for promote the development of unconventional shale industry .