Anti-skidding ladder

The utility model discloses an anti-skidding ladder which comprises a ladder main body, a supporting assembly is arranged on the ladder main body, and a locking assembly is arranged between the ladder main body and the supporting assembly. The supporting assembly comprises a bottom plate movably connected to the lower portion of the ladder body, a wear-resisting rubber pad is bonded to one side of the bottom plate, and the two sides of the bottom plate are each fixedly connected with a protruding column. The locking assembly comprises a gear fixedly connected to the surface of one protruding column, the surface of the gear is sleeved with a gear sleeve meshed with the gear, the side, away from the bottom plate, of the gear sleeve is fixedly connected with a spring, and the surface of the corresponding protruding column is sleeved with the spring. According to the telescopic ladder, the contact surface between the telescopic ladder and the ground is enlarged by additionally arranging the supporting assembly, t