The utility model discloses a gasket for connecting multi-strand wires safely, which consists of a gasket and a fastening screw. In the structure, the four sides of the gasket are folded to form vertical sides that are less than or equal to 90 DEG, and a screwed hole is machined in the center of the gasket. A wire is arranged between two gaskets and is fastened with the two gaskets into a whole by the screw. When the gasket substrate is square, the vertical sides are four right angles folded by the square substrate; when the gasket substrate is round, the vertical sides are spaced at 120 DEG or 90 DEG. In the gasket for connecting the multi-strand wires, the single-strand wire or the multi-strand wires are effectively prevented from being extruded, and the short trouble caused by poor contact is completely eliminated; the gasket is readily used at a narrow position or space, so as to facilitate the positioning of wire joints; the processing is easy, and the cost is low; and the gasket is also used in combination with a flat gasket and is fully utilized, therefore, the waste is reduced.