To obtain a drawn cup type heat exchanging in which the heat exchanging performance is enhanced by distributing refrigerant uniformly to a refrigerant channel.

Plate type refrigerant conduction parts 11, formed by placing two flat plates 13, 14 subjected to drawing in layer and incorporating a refrigerant channel R, and cooling fins 12 are placed alternately in layers. The flat plate 13, 14 is provided with a refrigerant inlet 15 for introducing refrigerant into the refrigerant channel R and a refrigerant outlet for passing refrigerant from the refrigerant channel R. Refrigerant flowing through the refrigerant inlet 15 is distributed to each refrigerant conduction part 11 and passed through the refrigerant channel R before being discharged from the refrigerant outlet. In such a heat exchanger, an opening 13a for passing refrigerant is provided at the refrigerant inlet 15 of each refrigerant conduction part 11 and the refrigerant, which can not pass through the opening 13a, is introduced to the refrigerant channel R by means of a baffle plate 20. The openings 13 a made in the adjacent baffle plates 20, 20 are arranged not to overlay each other.