The utility model provides a controllable magnetic connection universal sign hanging device which comprises a sign framework (1) and a magnet base (2), wherein the sign framework (1) is fixedly connected with the magnet base (2) via a connecting support (3); the connecting support (3) is a universal support; the connecting support (3) comprises an upper support (31) and a lower support (32), which are connected via a control bolt (33). According to the controllable magnetic connection universal sign hanging device, the connecting support adopts a universal support, locking pieces in the upper support and the lower support are regulated via the control bolt, accordingly, the sign can be rotated at multiple angles; in addition, during practical use, the regulation is convenient and quick, and the demand of the sign for multi-angle warning is satisfied.