Abstract:The coordinated development of marine ecological civilization and marine scientific and technological innovation can effectively implement the strategy of marine power and enhance my country"s comprehensive national strength, based on the explanation of the synergistic relationship between the two systems, the spatial-temporal evolution and reasons of the collaborative state between China"s marine ecological civilization system and marine science and technology innovation system from 2006 to 2016 are analyzed by using the composite system synergy degree model. The results show that: (1) The orderliness of the two systems continues to rise, with an average annual growth rate of 22% and 24% respectively. The orderliness of the marine ecological civilization system is higher than that of the marine technology innovation system as a whole; (2) The degree of synergy between the two is generally continuously increasing, but it is still in a general state of synergy, and the synergy process is volatile;(3) According to the co-evolution speed and current synergy level of the complex system, the coastal areas are divided into seven categories,and put forward specific recommendations.