Marine tourism economy is a social phenomenon produced and developed under certain social and economic conditions. Firstly，this paper expounds the evolution and stage characteristics of modern marine tourism，and then summarizes the experiences of overseas typical marine tourism development models，the problems existing in the development of China’s marine tourism include the lagging development and management system，the insufficient development，the insufficient excavation of profound culture，the un-outstanding cultural image of the tourist destination and the low quality of the personnel，finally，the paper puts forward some suggestions：Perfecting the guiding function of the government，constructing the market-oriented management system，innovating the development path of marine tourism，strengthening the development of cluster，adhering to the principle of giving priority to ecology，we will promote the green and low-carbon development of modern marine tourism，strengthen the development of professional personnel，and continuously improve marine tourism services，with a view to contributing to the high-quality development of marine tourism.