Abstract: Disclosed is a full-section anti-slide water-cut wall for treating giant landslides, which comprises at least one water-cut wall embedded in the landslide and arranged along the direction of blocking the movement of a sliding body; the water-cut wall comprises a plurality of anti-slide piles arranged at intervals, the bottom end of the anti-slide piles extend into the sliding bed, and a blocking wall is fixedly connected between adjacent anti-slide piles; the anti-slide pile and the blocking wall are provided with a plurality of drainage holes.