High-level sports events are an important way to promote the high-quality development of sports industry，shape urban image，enrich urban cultural connotation，and enhance the international influence and competitiveness of a city. In 2021，under the situation of the global COVID-19 epidemic，the level of attention and specialization of sports events in Shanghai has been continuously improved，the economic and social benefits have been effectively released，and the quality and structure of sports events have been continuously improved. This study evaluates the influence of international and domestic sports events held in Shanghai in 2021 from three aspects：attention，professionalism and contribution. These events have played an important role in serving the Olympic Games，popularizing sports events，updating venues and facilities，promoting the spread of sports culture，creating city name cards，promoting the linkage of regional competition systems，and strengthening the guarantee mechanism for hosting games. In order to optimize the layout of sports events in Shanghai and promote the construction of a world famous sports city and an international sports capital，Shanghai also needs to build featured competition brands，further optimize the structure of competition performance system，upgrade the industry level and promote the coordinated development of regional events.