Garbage bag clip capable of being fixed to garbage can for long time

The invention discloses a garbage bag clip capable of being fixed to a garbage can for a long time. The garbage bag clip comprises a fixed component fixed to the garbage can and a clamping seam in the outer side of the garbage bag clip, wherein the clamping seam is used for clamping garbage bags. The garbage bag clip can be fixed to the edge of the garbage can for a long time, and the outer side of the garbage bag clip is provided with the clamping seam used for clamping the garbage bags. The fixed component which is fixed to the edge of the garbage can for a long time is a reverse U-shaped component. A locking block is arranged on one side of the lower opening of the fixed component. The side, provided with the locking block, of the reverse U-shaped fixed component is downwards provided with a lower extending board. One end of a strip-shaped component is connected with the side, provided with the locking block, of the reverse U-shaped fixed component or the downwards extending section of the reverse U-shaped fixed component directly or through plug pins. The other end of the strip-shaped component tightly abuts against the same side of the fixed component to form the clamping seam for clamping the garbage bags. The top edge and the side edge, provided with the locking block, of the reverse U-shaped fixed component are respectively provided with one plug pin for stretching or retracting. The outer side of a plug of each plug pin and the inner side of one corresponding hole are arranged in a smooth convex strip-shaped block and a smooth concave strip-shaped block or in a convex point-shaped block and a smooth concave point-shaped block respectively, wherein the smooth convex strip-shaped block and the smooth concave strip-shaped block or the convex point-shaped block and the smooth concave point-shaped block are equal in insertion direction or interval.