To provide an inexpensive drying agent container bag by securing the durability of hole against friction.

The drying agent container bag is disposed in a liquid receiver 125 of a vehicle retaining a condensed refrigerant and separating gas and liquid, and absorbs water in the refrigerant. Sheet-like members 221 are bent and their neighboring ends 222 superposed each other are bonded together to form a bag body 220 for storing the drying agent 210 capable of absorbing water in the refrigerant therein. A bonded part 225 where two opposing faces of the sheet-like member 221 divided by a bent line 223a are bonded with each other is provided at the bent part 223 side of the bag body 220. The bonded part 225 is provided in the vicinity of a part where the bent part 223 side of the bag body 220 interferes with an inner wall 127b of the liquid receiver 125 due to the vibration of the liquid receiver 125.