Abstract: The present invention relates to a method of progressing a mobile baseball game capable of changing a game mode, and more specifically, to a method of progressing a mobile baseball game capable of changing a game mode, in which when the baseball game is played at a user terminal such as a smart phone, the game mode can be selected among an owner mode in which the game is entirely progressed by artificial intelligence (AI) of a game server, a manager mode in which only details of pitching and hitting are progressed by the AI of the game server, and a player mode in which a user performs the entire handling of the game.