To provide a simple, convenient refill pouch having excellent suitability for use which is easy to produce and to refill contents, makes it possible to pour the contents into a replenishment container at intervals safely and easily in use.

A refill pouch 40 before contents are filled into it is composed by joining a resealable plastic discharging opening 10 to a part of the top of the pouch, by sealing a top heat seal area 41 and body heat seal areas 42 under heat, thereby closing the remaining top and the edges of both its sides, further, by making a hook hole 45 in the top heat seal area 41 for suspending the pouch to display or store, and by keeping its bottom open. The contents are filled from the bottom, and, after filling is finished, a bottom seal area 43 is sealed under heat, thereby hermetically packaging the contents.