Vapor deposition mask, vapor deposition method, and production method for organic el display device

A vapor deposition mask comprising:

• a mask body at which an aperture pattern is formed;
• and
• a frame to which at least a part of a peripheral edge of the mask body is joined to hold the mask body at a certain state,
• wherein at least a part of the frame is formed by a columnar-shaped body in which unit structure bodies are stacked via an end plate, each of the unit structure bodies comprising a core portion encompassing a vacant space therein and end plates provided on opposite end surfaces of at least a part of the core portion, thereby forming a sandwich structure,
• wherein the unit structure bodies are stacked so as to align along an axis direction of the vacant space, and the end plate between the unit structure bodies stacked is provided on one surface to be connected or both surfaces to be connected of each of the unit structure bodies.