By using complex network theory and cluster analysis, the spatial pattern and the characteristics of ports distribution of Southeast-Asian Maritime Silk Road were studied based on the construction of shipping network nodes(cities), the network structure and node centricity evaluation index. Results show that the whole spatial pattern appears as "T" structure, and an exponent-function-like density distribution with a characteristic of scale-free property, and small-world network. Meantime, in the view of centralities, the ports distribution of Southeast-Asian Maritime Silk Road presents agglomerate and obvious regional agglomeration. Especially, Singapore, Port Klang, Jakarta and Tanjung Pelepas have the largest central values. It is suggested to take Singapore, Malaysia and Indonesia regions as regional certre of port development, and promote the construction of small and medium sized within the region, and strengthen the cooperation of port logistics between Southeast-Asian and China.