It cannot negate the function and value of the National Games while benefits generated from it is impossible to compare with that from international sporting events. In Taiwan, the National Games held biennially can be identified as the largest multi-sports events which should be able to create many benefits for the host city/county. Although there are many domestic studies on the benefits of sporting events, they mainly focused on economic effects and rarely explored the benefits of the National Games for host city/county. The main aim of the current study is to find out the dimensions, the indicators, and their weights of effects in holding National Games. In order to achieve this, this study adopts Delphi method and Analytic Hierarchy Process to obtain experts’ and/or academics’ opinions. The results of this study are present below. First, the benefit dimensions and their weights of holding National Games in turn are physical education effect, social effect, economic effect, cultural and art effect, political effect. Second, in total, benefit indicators under benefit dimensions are 23 items. Third, global weights of 9 benefit indicators are greater than 5%; global weights of 10 benefit indicators are less than 3%. Fourth, the results of this study highlight the importance of competitive sports in the National Games and the fact that politics benefit and political ideology are gradually reduced in holding the National Games. Fifth, the investment in sporting infrastructure through holding National Games is valued. Six, the result of this study highlight the fact that local image and locals’ consciousness are important in holding National Games.