Evaluation of innovation driven capability and diagnosis of obstacle factors based on comprehensive index method - a case study of Qingdao Marine Industry

China is a big ocean country, and marine economy plays an important role in the national economic system. It is urgent to develop marine resources scientifically, protect marine ecological environment, and improve the quality and efficiency of marine economic development. As the main force of marine economic growth has changed from relying on resources to technological innovation, the evaluation of innovation driven capacity has become an indispensable and important link. Taking the marine industry of Qingdao as the research object, this paper uses the comprehensive index method to construct the evaluation index system of innovation driven ability from three aspects: the basic level of scientific and technological innovation, the input and output of scientific and technological innovation of marine industry, and analyzes the driving capacity and obstacle factors of the current marine industry in Qingdao. The results show that the innovation driven development ability of Qingdao is outstanding, and the innovation driven development ability is closely related to innovation investment, scientific research and innovation environment and other factors. According to the research results, the paper puts forward some measures to further enhance the innovation driven ability.