A cosmetic device includes a barrel, a first transmission unit, a dispensing unit, a cover and a second transmission unit. The first transmission unit is co-rotated with the collar by rotating the mounting member to move the piston downward. The cosmetic liquid in the first room in the barrel flows out from the outlet of the dispensing unit. The mounting member is rotatable in one direction relative to the barrel by the engagement of the ratchet teeth portion of the collar and the pawl of the barrel. The reception tube of the second transmission unit is rotated to co-rotate the collar to let the rod spirally move in the inner tube to protrude the lipstick.