Assembly type decoration suspended ceiling middle module for indoor decoration

The utility model discloses an assembly type decoration suspended ceiling middle module for indoor decoration, and relates to the technical field of indoor decoration. The mounting structure comprises a main mounting plate and an auxiliary mounting plate, the main mounting plate and the auxiliary mounting plate are both of a plate body structure, the lower surface of the auxiliary mounting plate is fixedly connected with two connecting plates which are located at the two ends of the auxiliary mounting plate respectively, the upper surface of the main mounting plate is provided with a connecting groove, and the connecting groove is in sliding fit with the connecting plates. The size of the connecting groove is matched with that of the connecting plate. The connecting plate is arranged, the connecting plate can slide in the connecting groove, the fixing buckle and the fixing groove are arranged in a matched mode, the fixing buckle can be squeezed into the round hole by pressing the fixing buckle, then the fixin