The invention relates to a ski brake (1) for braking a ski (2) detached from a sports shoe, with a bearing device (3) for a brake lever arrangement (4) for placing on the upper side (5) of a ski (2). The brake lever arrangement (4) comprises brake levers (8, 9) arranged essentially symmetrically relative to the longitudinal middle axis (7) of the ski (2), which each have actuating arms (10, 11) and brake arms (12, 13). The brake arms (12, 13) project relative to the bearing device (3) and are pivotable over at least one pivot axis (15, 16) from a position of readiness located above the running surface (17) of the ski (2) by the force of a spring device (18) into a brake position projecting under the running surface (17). The actuating arms (10, 11) extend from the bearing device (3) in a direction facing away from the brake arms (12, 13) and are connected by a pivot bearing arrangement (21) with a foot plate (22) that can be loaded by the sole of a sports shoe. In this way an adjusting device (26) is formed whose adjusting force (28) forces the foot plate (22) continually into a pivot position (27) angled as far as possible relative to the actuating arms (10, 11).