The Belt and Road Initiative has already gone through 5 years anniversary. As its direction of maritime cooperation，21st Century Maritime Silk Road construction has yielded rich fruits too，more and more countries have taken part in this development wave which sharing blue opportunities. In five years，the plans and policies of Maritime Silk Road construction have achieved refinement，expansion and wider communication，the spatial arrangement of maritime connectivity has extent to “interconnection among four oceans”，interconnection between land and sea as well as linkage between the Belt and the Road have strengthened，the maritime cooperation in economy，trade，investment，environment and other fields has achieved effective promotion，multi-channel people to people exchanges have achieved collaborative expansion，multi-countries and parties are co-building development pattern of common prosperity among four oceans. At the same time，there are some problems in the Maritime Silk Road construction such as international geopolitical-economic game，domestic situation change of joint construction countries，fuzzy subjective cognition of Maritime Silk Road construction，different understanding and identity of the outsider world，unreasoning impetuosity of advancing process and so on，which have restricted real effect and long-term development of Maritime Silk Road construction. Facing with these problems，if we want to promote further Maritime Silk Road construction both in substance and depth，we can’t do without the combination between large part have something in mind and small part begins，we need to perfect top-level design of Belt and Road，overall planning the balanced development of land and sea；making efforts to build a new model of international relations，increasing mutual political trust among great powers；deepening investigation research of different countries，strengthening communication with political ecosystem；expanding public diplomacy of Maritime Silk Road，promoting closer people-to-people ties and meeting each other half way；scientifically assessing practice of Maritime Silk Road，promoting construction step by step；co-ordinating domestic actions of Maritime Silk Road，converting competition to synergetic composition of forces. 21st Century Maritime Silk Road construction is an important attempt of China which faces the oceans to realize the “Chinese dream” and build a community of shared future. In this big trend of cooperation that ocean frontage would bring about more prosperity，China has explained age connotation with its concrete actions，namely，guided by the Silk Road Spirit which is “openness，inclusiveness，cooperation，win-win”，sharing the blue opportunities，consulting blue cooperation together，co-constructing the blue channels，co-undertaking the blue governance，co-creating the blue century with every joint construction country of 21st Century Maritime Silk Road.