Jointly building the Silk Road Economic Belt and the 21st-century Maritime Silk Road is to promote regional economic cooperation，strengthen cultural exchanges，promote world peace and development，and benefit the world. This paper analyzes the three main features of “the Belt and Road”，namely comprehensive effect，project first and domestic development linkage；expounds the role of Shanghai in “the Belt and Road”，including window，hub，platform，market，project，rules etc.. In this paper，referring to international rules，the future of “the Belt and Road” and development of Shanghai，are also discussed.