A shelf assembly for a refrigerator, comprising: a shelf plate comprising first to fourth mounting members, and first to fourth brackets (22a, 22b, 22c, 22d) each having a fitting slot, wherein the first bracket is disposed at a left side of the shelf plate, and the second bracket is disposed at a right side of the shelf plate, wherein the fitting slot of each of the first and second brackets (22a, 22b) comprising a first sliding groove (22b1) extended along a vertical direction and a plurality of first receiving grooves (22b2) which are formed in a back wall of the first sliding groove (22b1), communicated with the first sliding groove (22b1) respectively and spaced apart from each other along the vertical direction; wherein the first mounting member is slidable within the first sliding groove (22b1) of the first bracket along the vertical direction so as to selectively fit within one of the plurality of the first receiving grooves of the first bracket, wherein the second mounting member is slidable within the first sliding groove (22b1) of the second bracket along the vertical direction so as to selectively fit within one of the plurality of the first receiving grooves of the second bracket, wherein the third mounting member is fitted within the fitting slot of the third bracket and a position of the third mounting member is adjustable along the vertical direction, wherein the fourth mounting member is fitted within the fitting slot of the fourth bracket and a position of the fourth mounting member is adjustable along the vertical direction, wherein the support shafts of the first and second mounting member are slidable within the first sliding grooves of the first and second brackets (22a, 22b) along the vertical direction, so as to selectively fit within one of the first receiving grooves of the first and second brackets (22a, 22b) respectively, characterized in that the first and second mounting members are disposed on the bottom surface of the shelf plate, the first mounting member is extended from a left side surface of the shelf plate, and the second mounting member is extended from a right side surface of the shelf plate, wherein each of the first and second mounting members includes a support shaft and a mounting block (211a, 211b) disposed on the bottom surface of the shelf plate and having a mounting hole, the support shaft is fitted within the mounting hole and extended beyond the shelf plate, wherein the support shafts of the first and second mounting members are integral with each other, wherein a first left stopping member for abutting against the first bracket is disposed on the left side surface of the shelf plate, and wherein a first right stopping member for abutting against the second bracket is disposed on the right side surface of the shelf plate. a shelf plate comprising first to fourth mounting members, and first to fourth brackets (22a, 22b, 22c, 22d) each having a fitting slot, wherein the first bracket is disposed at a left side of the shelf plate, and the second bracket is disposed at a right side of the shelf plate, wherein the fitting slot of each of the first and second brackets (22a, 22b) comprising a first sliding groove (22b1) extended along a vertical direction and a plurality of first receiving grooves (22b2) which are formed in a back wall of the first sliding groove (22b1), communicated with the first sliding groove (22b1) respectively and spaced apart from each other along the vertical direction; wherein the first mounting member is slidable within the first sliding groove (22b1) of the first bracket along the vertical direction so as to selectively fit within one of the plurality of the first receiving grooves of the first bracket, wherein the second mounting member is slidable within the first sliding groove (22b1) of the second bracket along the vertical direction so as to selectively fit within one of the plurality of the first receiving grooves of the second bracket, wherein the third mounting member is fitted within the fitting slot of the third bracket and a position of the third mounting member is adjustable along the vertical direction, wherein the fourth mounting member is fitted within the fitting slot of the fourth bracket and a position of the fourth mounting member is adjustable along the vertical direction, wherein the support shafts of the first and second mounting member are slidable within the first sliding grooves of the first and second brackets (22a, 22b) along the vertical direction, so as to selectively fit within one of the first receiving grooves of the first and second brackets (22a, 22b) respectively, characterized in that the first and second mounting members are disposed on the bottom surface of the shelf plate, the first mounting member is extended from a left side surface of the shelf plate, and the second mounting member is extended from a right side surface of the shelf plate, wherein each of the first and second mounting members includes a support shaft and a mounting block (211a, 211b) disposed on the bottom surface of the shelf plate and having a mounting hole, the support shaft is fitted within the mounting hole and extended beyond the shelf plate, wherein the support shafts of the first and second mounting members are integral with each other, wherein a first left stopping member for abutting against the first bracket is disposed on the left side surface of the shelf plate, and wherein a first right stopping member for abutting against the second bracket is disposed on the right side surface of the shelf plate.