A press-on cosmetic container has a main tube, an inner tube, a spring and an actuator. The main tube has multiple positioning protrusions and multiple sliding slots. The inner tube has multiple ribs. Two ends of the spring respectively abut the main tube and the inner tube. The actuator is mounted between the main tube and the inner tube and pushes the ribs, such that the ribs are revolved and each rib is positioned alternately through the sliding slots and abutting the positioning protrusions of the main tube. A user can hold the press-on cosmetic container with one single hand to allow a sprayer of a bottle mounted in the cosmetic container to protrude outside or to be stored inside, which is convenient for use.