The invention relates to a swing switching structure of a water outlet device, which comprises a sprinkler body, a water distributing body and a water outlet device, wherein, the water outlet device is fixed below the sprinkler body; the water distributing body is fixed above the water outlet device in a sealing manner; at least two water distributing holes are formed on the water distributing body for respectively communicating every functional water cavity of the water outlet device; and a movable switching device is arranged above the water distributing body of the sprinkler body, passes through the sprinkler body and is fixed to a water supplying joint. When the sprinkler body swings relative to the movable switching device, the movable switching device can plug water distributing holes formed on the distributing body and keep one water distributing hole in an open state. Through the arrangement of the movable switching device on the sprinkler in combination with the clearance fit relation between the sprinkler and a water supply pipe joint, the sprinkler can be swung and inclined when being flapped and the movable switching device can control the water outlets of different water distributing holes on the water distributing body, thereby realizing the switching of various functional waters, and enabling the switching of the sprinkling functional waters to be more laborsaving and flexible.