A flight control surface such as a slat capable of keeping and achieving a minimum basic functions even when it is damaged by collisions of birds or the like, and a wing using the same are provided. Both ends of one wire cable 15 or more are fixed to paired ribs 10A and 10B provided in a short direction of the slat. This wire cable 15 is placed so as to pass through a through-hole 13 formed in each of the ribs 10 positioned between the paired ribs 10A and 10B. Even if birds or the like collide with slat 3 at the time of a flight of the aircraft to damage and deform not only a skin 4 of the slat 3 but also any rib 10, the wire cable 15 between the paired ribs 10A and 10B prevents the slat 3 from being broken into pieces.