The present invention provides a dining-table turntable capable of slidable stretching, including a rotating shaft, a supporting stand and several turntable plates, wherein, the supporting stand is provided above the rotating shaft, a sliding chute is provided on the supporting stand, sliding rails are provided on both sides of the turntable plates, the supporting stand is in flexible connection with the turntable plates through the sliding chute and the sliding rails, and handles are provided on the external side of the turntable plate. When in use, the inventive dining-table turntable capable of slidable stretching is combined with the dining-table, for placing the dish on the turntable, when the dish is rotated before and is not convenient to clip, the handle can be pulled out from the turntable plate for expediently clipping one's favorite dish. The present invention has advantages of flexible and easy use, simple structure and so on.