The invention relates to a child safety gate which occupies as little space as possible when the gate is open. The child safety gate comprises two or more panels (1, 2, 3, 4) interconnected by at least one hinge (5). The panels are mounted in the opening via at least one fitting (10) connected with an end panel (3) at one side. At least one closure device (12, 13) is connected with an end panel (4) at the other side. The hinges (5) may be connected with the panels (1, 2, 3, 4), so that the panels may be folded in- wardly over each other when the gate is opened. A panel top (8) and/or a panel base (9) may be connected with the panels. The panels (1, 2, 3, 4) may comprise two panel parts which may be telescoped. An extension panel may be disposed between the panel parts.