The utility model relates to the technical field of cabinet pull-out baskets, in particular to a cabinet pull-out basket movable separating device which comprises a pull-out basket body, and the pull-out basket body comprises a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate, a plurality of movable separation devices are arranged in a cavity formed by the bottom plate, the front side plate, the rear side plate, the left side plate and the right side plate and are sequentially arranged at intervals. Each movable separation device comprises a first separation plate and a second separation plate which are arranged side by side at intervals, the front ends and the rear ends of the first separation plate and the second separation plate are connected with the front side plate and the rear side plate through first sliding buckles correspondingly, and the first sliding buckles can transversely slide on the front side plate and the rear side plate in the left-right direction. According to the utility model, the movable separating devices are arranged in the pull basket, so that the transverse or longitudinal space separation in the cavity of the pull basket can be realized, different seasonings can be conveniently placed in a classified manner, and the use is convenient.