In order to enhance the high-quality development of the “Belt and Road” Initiative，the political security level of host countries has become one of the key issues considered by enterprises when they go abroad. Based on the calculation results of the political security index of 37 sample countries by the model built in the general report，this paper analyzes the “status” and “trend” of political security in the countries built along the “Belt and Road” Initiative since 2010，and analyzes in detail the political security situation of each regional country and its impact on Chinese enterprises’ investment based on facts. The study found that from the regional perspective，the overall political security level of Central and Eastern European countries is good，while the political security level of Southeast Asian countries varies greatly；from the country perspective，Italy and Singapore have good political security，while Yemen and Syria have a much lower political security index than the average.