The utility model discloses a winding drum device for a minor axis winding lifting-type ship lift. The winding drum device for the minor axis winding lifting-type ship lift comprises a stand, a winding drum and a steel wire rope, wherein one side of the winding drum is connected with an output shaft of a speed reducer; the other side of the winding drum is connected with a brake disc; the outer wall of the winding drum is provided with a rope race; the steel wire rope is wound in the rope race; a winding drum minor axis is arranged in the winding drum; one side of the winding drum minor axis is connected with the stand; one side, close to the output shaft of the speed reducer, of the winding drum minor axis is connected with an inner support center plate; the winding drum is connected with an outer support center plate which is fixedly connected with the brake disc; and the output shaft of the speed reducer is connected with a coupler to drive the winding drum to rotate. According to the winding drum device for the minor axis winding lifting-type ship lift, the overall bending resistance of the winding drum is effectively enhanced; and besides, two ends of each steel wire rope are used as a lifting rope and a torque balancing rope, and the adjacent lifting ropes and the adjacent torque balancing ropes share the rope race of the winding drum, so that the length and wall thickness of the winding drum are greatly reduced, the stress state of the winding drum is obviously improved, and the axial deformation of the winding drum can be controlled better.