A fixing assembly comprising: a wire rack including a vertical frame and a horizontal frame; a slide rail including a fixed rail coupled to the wire rack and a movable rail disposed on the fixed rail to be slidably movable; and a fixing part configured to couple the fixed rail to the wire rack, wherein the fixing part includes a first fixing clip provided at one side of the fixed rail and a second fixing clip provided at the other side of the fixed rail 210); wherein the first fixing clip is laterally supported on the horizontal frame, and then the second fixing clip is horizontally fixed to the horizontal frame wherein the second fixing clip includes: a second plate portion positioned on the horizontal frame and coupled to be in contact with one surface of the fixed rail; a connection portion formed to be bent downward from one end of the second plate portion so as to support an outer side of one angular end portion of the horizontal frame; a second support portion positioned below the horizontal frame and formed to face the second plate portion in one direction from an end of the connection portion which is a direction in which a horizontal portion of the horizontal frame extends, wherein the second plate portion, the second support portion, and the connection portion surround said angular end portion of the horizontal frame; characterized in that an extension portion is formed to extend from said second support portion so as to face the second plate portion; an inclined portion is formed in a direction from one side of the extension portion to the horizontal portion of the horizontal frame so as to be inclined upward; and a side extension portion is formed to extend in the other direction from the connection portion, that is, in a direction opposite to the direction in which the horizontal portion extends. a wire rack including a vertical frame and a horizontal frame; a slide rail including a fixed rail coupled to the wire rack and a movable rail disposed on the fixed rail to be slidably movable; and a fixing part configured to couple the fixed rail to the wire rack, wherein the fixing part includes a first fixing clip provided at one side of the fixed rail and a second fixing clip provided at the other side of the fixed rail 210); wherein the first fixing clip is laterally supported on the horizontal frame, and then the second fixing clip is horizontally fixed to the horizontal frame wherein the second fixing clip includes: a second plate portion positioned on the horizontal frame and coupled to be in contact with one surface of the fixed rail; a connection portion formed to be bent downward from one end of the second plate portion so as to support an outer side of one angular end portion of the horizontal frame; a second support portion positioned below the horizontal frame and formed to face the second plate portion in one direction from an end of the connection portion which is a direction in which a horizontal portion of the horizontal frame extends, wherein the second plate portion, the second support portion, and the connection portion surround said angular end portion of the horizontal frame; characterized in that an extension portion is formed to extend from said second support portion so as to face the second plate portion; an inclined portion is formed in a direction from one side of the extension portion to the horizontal portion of the horizontal frame so as to be inclined upward; and a side extension portion is formed to extend in the other direction from the connection portion, that is, in a direction opposite to the direction in which the horizontal portion extends. a second plate portion positioned on the horizontal frame and coupled to be in contact with one surface of the fixed rail; a connection portion formed to be bent downward from one end of the second plate portion so as to support an outer side of one angular end portion of the horizontal frame; a second support portion positioned below the horizontal frame and formed to face the second plate portion in one direction from an end of the connection portion which is a direction in which a horizontal portion of the horizontal frame extends, wherein the second plate portion, the second support portion, and the connection portion surround said angular end portion of the horizontal frame; characterized in that an extension portion is formed to extend from said second support portion so as to face the second plate portion; an inclined portion is formed in a direction from one side of the extension portion to the horizontal portion of the horizontal frame so as to be inclined upward; and a side extension portion is formed to extend in the other direction from the connection portion, that is, in a direction opposite to the direction in which the horizontal portion extends.