The present invention provides a drawer stop mechanism for a sliding drawer, and the drawer stop mechanism is assembled on a drawer panel of the sliding drawer. The drawer stop mechanism includes an upper decoration strip, a lower decoration strip, at least one spring and at least one lock hook. The upper decoration strip is fixed on the drawer panel. The lower decoration strip is movably connected with the upper decoration strip by a pivot. The at least one spring is mounted between the upper decoration strip and the lower decoration strip. The at least one lock hook is fixed at the lower decoration strip. The drawer stop mechanism provided by the present invention has a simple structure, is easy to use and can lock the drawer perfectly.