Sharing and collaborating are important trends of the development of world economy，so promoting knowledge sharing is in line with the world economic development and the internationalization of education. Share-Based education experience，represented by MOOC，can effectively improve the efficiency of traditional graduate students’ education resources allocation and promote the spillover effect and sharing of knowledge. Therefore it is important and practical to advance MOOC education in postgraduate education. Based on the sharing economic theory，this paper analyzes the characteristics of MOOC education of postgraduate and finds some problems in the its development，such as partial assessment methods，the lack of effective supervision of the third party and the difficulty in certificating results，and brings forwards the construction and operating mechanism of graduate students’ MOOC education platform model using sharing knowledge theory and big data analysis，and then systematically analyzes the optimized path of graduate students’ MOOC education platform model from the aspects of resources integration of both sides of supply and demand，learning behavior optimization and its management service pattern，commercial platforms operation，etc.，with the hope of giving some inspirations for the construction of graduate students’ MOOC education model and learning behavior.