The utility model discloses a device for proportioning recycled concrete. Driving rotary shaft, the outer surface of the driving rotating shaft is sleeved with a stirring wheel; a positioning rod is welded and mounted on the outer surface of the stirring wheel; a fixed sub-plate is arranged at the position close to one side of the positioning rod on the outer surface of the stirring wheel; a rolling bearing is sleeved with the positioning rod, a connecting rod is sleeved with the inner surface of the rolling bearing, a stirring paddle is arranged on the outer surface of one end of the connecting rod, stirring blades are fixedly installed on the outer surface of the stirring paddle, an auxiliary fixed ring is sleeved with the outer surface of the positioning rod, and a device barrel is arranged outside the auxiliary fixed ring. The recycled concrete proportioning device is provided with the rolling bearing, the connecting rod, the stirring blades, the first feeding pipe, the first stirring wheel, the second feeding pipe and the second stirring wheel, residues of materials on the surface body are avoided while stirring is conducted, the effects of preventing blockage and improving the discharging efficiency can be achieved, and better use prospects are brought.