Through the study of various problems in the elimination game, with unity 3D technology which has the advantages of convenient interactive graphical development environment and the cross-platform features, and C# scripting language is simple, safety, efficient, this paper carefully investigated and described the candy elimination of categories in mobile Android game algorithm design, AI design and the game development process. To achieve the level of the game options, multiple candy elimination, special effects, scores of statistics, and other functions. For the development of such games or other games with a certain guidance and reference.