A firing linkage mechanism includes a linkage assembly, a trigger assembly, and a firing assembly. The linkage assembly has a moving end and a firing end. The trigger assembly is disposed on the moving end and has a trigger portion and a connecting portion connected with the moving end. The connecting portion drives the linkage assembly to make an axial movement when the trigger portion is acting. The firing assembly is disposed on the firing end and has a touching portion and a firing portion extended from the touching portion. The firing end of the linkage assembly is disposed with an acting portion cooperating with the touching portion of the firing assembly. The acting portion is driven to move the touching portion by the axial movement of the linkage assembly to make the firing portion implement a firing action.