Abstract:From the perspective of bibliometric to analysis deeply the research content, methods and trends in the field of risk assessment in recent 20 years. Taking the relevant literature of risk assessment published by CNKI journal from 1997 to 2017 as the research object, this paper divides the literature into three stages according to the amount of articles published, through the methods of keyword co-occurrence analysis, social network analysis and data visualization, the potential hot spots and development trend of risk assessment research are summarized. Through the word frequency statistics and network analysis found that credit risk, food safety, environmental risk and information security, is the main research contents of risk assessment. Fuzzy comprehensive evaluation and analytic hierarchy process are the most frequently used methods. However, with the changing in demand of the eras and the improvement of data collection and storage technologies, some methods based on big data and deep learning, have been receiving more and more attention in risk assessment research.