Disclosed is a structure for supplying sugar water for a beehive. The structure for supplying sugar water for a beehive of the present invention comprises: a liquid storage unit provided at a lid body for storing liquid a liquid supply member connected to the liquid storage unit for supplying the liquid to a sugar water storage unit on the beehive body and a beehive cover provided with a water-level adjustment unit including a guide passageway, an opening/closing member, and an opening/closing member operating unit, wherein the guide passageway is provided at the sugar water storage unit and has one side connected to the liquid supply member for allowing the liquid into the sugar water storage unit the opening/closing member is disposed inside the sugar water storage unit for opening or closing the guide passageway and the opening/closing member operating unit is provided at the sugar water storage unit and connected to the opening/closing member for operating the opening/closing member. The opening/closing member operating unit includes a rotation support rod which is connected to a wall portion of the sugar water storage unit to be rotated, and a floating member whose one side is connected to the rotation support rod, whose the other side is connected to the opening/closing member by a connection member, and which floats in the liquid filling the inside of the sugar water storage unit and thereby raises the opening/closing member and blocks a lower end of the guide passageway. Also, according to the present invention, the opening/closing member includes a blocking bump inserted in the guide passageway the liquid stored in the sugar water storage unit is supplied through a hose member from a sugar water storage unit in another beehive body a joint hose member whose one side is connected to the liquid storage unit and whose the other side is connected to the hose member, is further included the joint hose member allows the liquid to be supplied from another beehive
