Co-Building 21st Century Maritime Silk Road is an important initiatives. This initiatives demonstrate the new sprit of new silk road in unity and mutual trust，quality and mutual benefit，inclusive and mutual learning，and this is one of path of building China-ASEAN Destiny Community. ASEAN Countries are important start points in 21st century maritime silk road，it is also one of important pivots. Co-building 21st century maritime silk road not only can strengthen the friendly foundation，but also can build human beings destiny community including China-ASEAN.