A refrigerator comprising: an inner case defining a storeroom and having a plurality of projections formed to protrude toward an inside of the storeroom; a drawer arranged to be inserted into or pulled out from the storeroom; and a supporting frame formed in a plate shape and formed to extend across a width of the drawer, the supporting frame arranged to be installed at the projections of the inner case in the storeroom to guide a movement of the drawer, wherein the supporting frame comprises: guide ribs formed to guide the movement of the drawer, and a plurality of fixers arranged on both sides of the supporting frame to prevent the supporting frame from deviating from the projections, the fixers being formed on bottom surfaces of the guide ribs and being deformed from an original state when a pressure is applied by the projections and restored to the original state when the pressure from the projections is released; wherein the supporting frame is inserted to and installed in an installation groove formed by the plurality of projections, and both side edges of the supporting frame are supported by the projections, and characterized in that the projection comprises a fixing groove recessed to form a space into which the fixer is insertable, and the supporting frame is fixed to the projection while the fixer is inserted into the fixing groove. an inner case defining a storeroom and having a plurality of projections formed to protrude toward an inside of the storeroom; a drawer arranged to be inserted into or pulled out from the storeroom; and a supporting frame formed in a plate shape and formed to extend across a width of the drawer, the supporting frame arranged to be installed at the projections of the inner case in the storeroom to guide a movement of the drawer, wherein the supporting frame comprises: guide ribs formed to guide the movement of the drawer, and a plurality of fixers arranged on both sides of the supporting frame to prevent the supporting frame from deviating from the projections, the fixers being formed on bottom surfaces of the guide ribs and being deformed from an original state when a pressure is applied by the projections and restored to the original state when the pressure from the projections is released; wherein the supporting frame is inserted to and installed in an installation groove formed by the plurality of projections, and both side edges of the supporting frame are supported by the projections, and characterized in that the projection comprises a fixing groove recessed to form a space into which the fixer is insertable, and the supporting frame is fixed to the projection while the fixer is inserted into the fixing groove. guide ribs formed to guide the movement of the drawer, and a plurality of fixers arranged on both sides of the supporting frame to prevent the supporting frame from deviating from the projections, the fixers being formed on bottom surfaces of the guide ribs and being deformed from an original state when a pressure is applied by the projections and restored to the original state when the pressure from the projections is released; wherein the supporting frame is inserted to and installed in an installation groove formed by the plurality of projections, and both side edges of the supporting frame are supported by the projections, and characterized in that the projection comprises a fixing groove recessed to form a space into which the fixer is insertable, and the supporting frame is fixed to the projection while the fixer is inserted into the fixing groove.