The invention discloses an underwater movable lifting basket. The underwater movable lifting basket comprises a suspension mechanism, a walking rail beam, a slide rail car, a hydraulic windlass and alifting basket; the suspension mechanism is fixedly connected with the walking rail beam; the slide rail car is movably connected to the walking rail beam; the hydraulic windlass is fixedly connectedto the bottom of the slide rail car; the hydraulic windlass controls the lifting basket; at least three lifting points are arranged at the top of the walking rail beam; the suspension mechanism is fixedly connected with the lifting points; the slide rail car is provided with a driving device; the driving device controls the slide rail car; and the lifting basket is provided with a body fixing device. Through design of the hydraulic windlass and the slide rail car, an underwater vertical surface defect treatment movable platform is provided to divers; the platform is stable and reliable duringworking and convenient to move; and the body fixing device is mounted in the lifting basket, so that constructors can preferably stabilize bodies in water for underwater operation, and the underwateroperation of the constructors cannot be influenced after fixation of the bodies of the constructors.