The invention discloses a mechanical telescopic bulletin board, which comprises a body, a supporting bottom border, a horizontal board, a horizontal rod, hanging rings, a turnable board and a supporting column; the supporting bottom border is arranged under the body, a hollow sleeve is fixed on the top of the body, an internal tube is slidably arranged in the hollow sleeve in a fastening manner, and a rotary sleeve is arranged at the outside top end of the internal tube; the internal horizontal board is connected with the right side of the rotary sleeve, a suggestion box is fixedly arranged on the bottom of the right side of the horizontal board, and a cover is hinged at the end of the suggestion box; a lamp and a storage battery are arranged on the bottom of the suggestion box, the lamp is electrically connected with the storage battery, and a lampshade is arranged outside the lamp; a vertical rod is connected with the bottom of the left side of the horizontal board, the lower end of the vertical rod is connected with the middle part of the horizontal rod through a shaft sleeve, and the shaft sleeve is rotatably fastened with the horizontal rod; the hanging rings are equidistantly arranged on the horizontal rod, and clips are mounted on the hanging rings in a fastening manner; the turnable board is arranged on the right side of the body, and the turnable board is rotatably fixed in a frame through a rotary shaft. The mechanical telescopic bulletin board has diversified forms, diversified functions and a good propagandist effect, can be stably supported, and is convenient to use.