A heat exchanger and a method for manufacturing the same

The present invention relates to a heat exchanger and a method for manufacturing the same. According to an embodiment of the present invention, the heat exchanger includes: a refrigerant tube for flow a refrigerant; a through-hole for inserting the refrigerant tube; and a pin having cut portions extended toward the outside from the though-hole. The cut portions are formed by having at least one portion of the pin be cut, and are provided in multiple. The cut portions are extended toward different directions, and become slits or holes.