The utility model provides a volume adjustment formula garbage bin, it is convenient that relates to garbage bin, especially a volume adjustment, is suitable for the volume adjustment formula garbage bin of multiple size plastic bag. The utility model discloses a volume adjustment formula garbage bin, be provided with the tray in this garbage bin of its characterized in that, the tray diameter is not more than the garbage bin internal diameter, and the symmetry is provided with a pair of gleitbretter on the garbage bin inner wall, sets up the location on the gleitbretter and detains, and tray back centre of a circle rigidity sets up an elastic component, and the both ends of elastic component are slider of fixed connection respectively, and two sliders are the linearity with the elastic component, the outer end and the gleitbretter contact of slider, and inner top is provided with foldable slip plectrum perpendicularly, and slip plectrum top is provided with the arch. The utility model discloses a volume adjustment formula garbage bin sets up fixed bolster and recess at the bung hole, through the size of fixed bolster adjustment garbage bin bung hole, utilizes the slider and the elastic component at gleitbretter and tray back simultaneously, the height of adjustment tray to the inside volume of this adjustment garbage bin.