An angle adjustable connecting module comprises a casing and a connecting assembly. The casing has an opening. The connecting assembly includes a connecting portion, a shaft and at least an elastic member. The connecting portion is connected with the shaft, an end of the elastic member is connected with the shaft and the other end of the elastic member is connected with the casing, and the shaft is rotatably disposed at the casing for allowing a part of the connecting portion to be movably exposed to the opening. Thus, the wear problem generated as connecting with the game controller can be reduced for ensuring that the functions are normally operated to extend the lifetime of the game controller.