The invention provides an automatic detecting method for a mobile game. The automatic detecting method for the mobile game comprises the following steps of: acquiring a preset widget test decision-making tree; acquiring and analyzing a present operation interface of the mobile game, thereby acquiring a user interface widget of the present operation interface; and adopting a corresponding widget test rule of the present operation interface in the widget test decision-making tree for clicking and testing the user interface widget of the present operation interface. The invention also provides an automatic detecting device for the mobile game. According to the automatic detecting method for the mobile game and the automatic detecting device provided by the invention, the automatic clicking test of the mobile game is performed through the widget test decision-making tree, so that the automatic adaption test of the mobile game is realized.