Abstract. This paper is based on ecology, environmental ecology, ecological carrying capacity and sustainable development, Marine science, economics, regional tourism development, DEA and other disciplines theory, according to the requirements of the condition of ecological tourist area determine, designs the evaluation project type coastal ecological tourist area and the evaluation scoring method of China's main coastal city ecological tourism environment quality evaluation, the DEA method is used for Chinese coastal city ecotourism development efficiency evaluation, and analyzes the evaluation results, put forward the optimized path.