PROBLEM TO BE SOLVED: To provide a metal foil forming container where a decrease in strength to a vertical load of an entire container due to provision of a waterline in a circumferential wall is suppressed.SOLUTION: A circumferential wall 12 of a container includes: a corner wall comprising a portion in a predetermined range of an entire circumference including one of four corners of a substantially square at an upper edge and a portion extending to a lower edge immediately therebelow; and four intermediate walls M comprising a portion between adjacent corner walls. The corner wall comprises a corner center wall E1 centrally positioned in a circumferential direction, and corner side walls E2 positioned on both sides in the circumferential direction. The corner center wall E1 rises up in a substantially constant angle into a linear shape. Each of the corner side walls E2 has a bending part 12a serving as a waterline in the middle of a direction of the corner center wall E1 rising up. Since the corner center w
