The utility model provides a milk power proportioning device, including milk powder box (5), still include: the rotation set up in carousel (4) in the milk powder box (5), the one side of carousel (4) with the bottom surface contact of milk powder box (5), the non - centre of a circle position of carousel (4) is provided with and runs through its dual milk power dosing hole (41), milk power dosing hole (41) with meal outlet (52) that milk powder box (5) bottom surface set up correspond the setting, fixed set up in fall whitewashed device (3) in the milk powder box (5), fall whitewashed device (3) with meal outlet (52) correspond the setting, fall whitewashed device (3) have with doctor -bar (32) of the another side contact of carousel (4), with pivot mechanism (6) of the centre of a circle position connection of carousel (4). The utility model provides a milk power proportioning device, the accurate quantitative supply of milk power has been ensured to the volume of the milk power that the control of being convenient for is fallen out by the meal outlet.