To obtain a folding type cup-shape container which is stable and, for example, does not fall down unexpectedly in using the same as a container.

This folding type cup-shape container, made of a foldable material such as paper or synthetic resin, flat as a whole when the same is folded, is deformed into a cup-shape by pressing toward a center direction from its right and left end edges, and whose bottom part when the same is in a cup- shape is formed with a curved space part on its lower face. An auxiliary board 2 for stability is provided downward from a body part corresponding to the curved part of a container main body 1.