Abstract: Based on the bilateral trade data of China and Japan in Association of Southeast Asian Nations (ASEAN) market , this paper analyzes the status of China's and Japans infrastructurerelated Industries export to ASEAN market ,which contains trade scale，trade growth, trade structure and market distribution; Uses the revealed comparative advantage index to measure and evaluate the export competition of China's and Japans Infrastructurerelated Industries in ASEAN market; Uses the transfer share analysis method to compare the infrastructurerelated Industries export competitiveness to ASEAN market. This research finds that China's infrastructurerelated Industries maintain large export scale and rapid export growth to ASEAN market compared with Japan; Main export goods in China and Japan are similar, but the main export markets are different; The export competitiveness is on an upward trend in China, while on a downward trend in Japan; The export competitiveness of subdivided products are similar in China and Japan, and Japan's competitiveness of each export market is stronger than that of China; Compared with Japan, China's infrastructurerelated Industries have competitive advantage, which mainly because of the competitive effect ;Although in a disadvantage, Japan has a positive industry structure effect , especially in transportation equipment; China and Japan should strengthen the cooperation of infrastructurerelated industries in the ASEAN market, to improve the joint competitiveness of exports, and realize winwin cooperation and the dynamic complementarity of the trade.

Key words: ASEAN market, infrastructurerelated industries, export competitiveness