Abstract: With the further development of marine economy, the structure of marine industrial improve continuously. The proportion of in marine industrial structure improve gradually, at the same time, the marine services give an auxiliary support to marine industry. The improving level of urbanization in coastal areas play a catalytic role in the development of service industry, and service industry drive the development of urbanization process to a higher level in a corresponding way. Under the effect of circular cumulative causation, they development together. To discover the improving law, we analysis the urbanization and marine services harmonious development from the perspective of spatial and temporal coupling. Research shows that the urbanization of coastal areas and marine services coordination development level is on the rise, the coordinated development level changed from on the verge of disorder to fine coordination, Marine service industry development situation is good, and the development way from the urbanization promote the development of marine services change to marine services to promote the urbanization process. Regional coordination level difference is obvious, and at the same time shows the characteristics of fluctuation change. Regional coordination level difference is obvious, and at the same time shows the characteristics of fluctuation change. Among coordinated development type, urbanization lag model has a higher proportion of for a long time, and marine services lag type account for high proportion for a short time. Mainly because of the urbanization process presents the "S" curve, the law of the development of Marine services straight upward trend, eventually led to the regional coordination development level, type, shows the characteristics of changes in volatility.

Key words: China&rsquo, s coastal regions