A condenser for a refrigerator comprising a heat exchange unit configured to receive, at one side thereof, refrigerant which has been compressed in a compressor , to perform heat exchange between the refrigerant and air and to discharge the refrigerant, which has exchanged heat with the air, to an evaporator , wherein the heat exchange unit includes a flat tube , through one end of which the refrigerant is able to be introduced and through a remaining end of which the refrigerant is able to be discharged, thereby performing heat exchange between the refrigerant and the air, wherein the flat tube includes at least one bent tube portion defining plural rows of tubes , which are spaced apart from each other in an up-and-down direction, and wherein the plural rows of tubes include an intersection bent portion and define an intersection bent surface (S), which has a predetermined curvature and intersects the up-and-down direction, wherein the intersection bent surface (S) of the intersection bent portion and a bent surface (S2) of the bent tube portion are disposed in a direction so as to intersect each other, wherein the intersection bent portion has a radius of curvature (R1) which is larger than a radius of curvature (R2) of the bent tube portion , wherein the flat tube has a longer side which is disposed parallel to the intersection bent surface (S) of the intersection bent portion , wherein said longer side is disposed in a direction so as to intersect the bent surface (S2) of the bent tube portion , wherein each of the bent tube portions connects the left ends or the right ends of adjacent tube rows , the flat tube is configured such that the plural rows of tubes are layered in an up-and-down direction in a zigzag fashion. wherein the heat exchange unit includes a flat tube , through one end of which the refrigerant is able to be introduced and through a remaining end of which the refrigerant is able to be discharged, thereby performing heat exchange between the refrigerant and the air, wherein the flat tube includes at least one bent tube portion defining plural rows of tubes , which are spaced apart from each other in an up-and-down direction, and wherein the plural rows of tubes include an intersection bent portion and define an intersection bent surface (S), which has a predetermined curvature and intersects the up-and-down direction, wherein the intersection bent surface (S) of the intersection bent portion and a bent surface (S2) of the bent tube portion are disposed in a direction so as to intersect each other, wherein the intersection bent portion has a radius of curvature (R1) which is larger than a radius of curvature (R2) of the bent tube portion , wherein the flat tube has a longer side which is disposed parallel to the intersection bent surface (S) of the intersection bent portion , wherein said longer side is disposed in a direction so as to intersect the bent surface (S2) of the bent tube portion , wherein each of the bent tube portions connects the left ends or the right ends of adjacent tube rows , the flat tube is configured such that the plural rows of tubes are layered in an up-and-down direction in a zigzag fashion. <EOS>