To provide a reliable reclining stroller, which is in no danger of pinching fingers and can be surely manipulated with a single hand.

A reclining system has a pedestal 2, a chair back 6 supported by the pedestal 2 to facilitate revolving, and a supporting material 111, which protrudes from the chair back 6 and whose tip almost reaches the same horizontal position as the lower surface of the pedestal 2 when reclined, a prop material 200 attached to the back of the chair back 6 energized downward, which is movable up and down, a receiving part 22 set on the pedestal 2, which receives the lower end of the prop material 200 at the standing position, and a locking member 300, which stops the prop material from moving upward at the standing position as well as releases the locking.