The invention discloses a component for quickly brewing milk, which comprises a milk bottle and a milk powder box, wherein the milk powder box is provided with a first connection part capable of being connected with a nipple in a matching manner, and the milk bottle and the milk powder box can be connected for use; a baffle and a baffle opening and closing mechanism are arranged in the milk powder box, and the baffle serves as a movable box bottom of the milk powder box; before the milk powder is brewed, the baffle opening and closing mechanism enables the baffle to block up the milk powder outlet in the milk powder box, the milk powder and warm water are put into the milk powder box and the milk bottle respectively, then the milk powder box and the milk bottle are closed, and the nipple is connected onto the upper end of the milk powder box so as to enable the milk brewing milk component to be ready for brewing milk; when the milk power is required to be brewed, only the baffle opening and closing mechanism is required to be operated, the baffle is opened, the milk powder falls into the milk bottle, and rocked uniformly, and the milk can be drunk. The component for brewing the milk has the advantages that the structure is simple, the steps of brewing milk powder are simplified, and the milk powder in the to-be-brewed state is completely separated from the warm water in the milk bottle, and the milk powder is less susceptible to residue.