An environment-friendly garbage bin capable of preventing garbage from falling out comprises a box body, a box cover, a box cover foot pedal, a movable bucket edge, pressure plates, a control rope, afulcrum and a supporting rod; one end of the box body is provided with a base, and a garbage bag extraction box is fixed on one side of the box body; and a pressure plate foot pedal is arranged on oneside, far away from the garbage bag extraction box, of the box body, the box cover foot pedal is arranged on one side of the base, and one side, close to the box cover foot pedal, of the box body isconnected with a drawstring. According to the environment-friendly garbage bin capable of preventing the garbage from falling out, the box body, the drawstring, the movable bucket edge and buckles arearranged, the drawstring is fixed to the outer side half circle of the movable bucket edge, the drawstring passes through the box body and is placed on two sides of the box body, the four buckles arearranged on the inner side of the movable bucket edge, so that four corners of a garbage bag can be locked in the buckles to fix the position of the garbage bag, and when the garbage bag needs to betaken out, the drawstring is pulled to drive the movable bucket edge to rotate along the box body to tighten an opening of the garbage bag to facilitate packaging and disposal of the garbage.