A plurality of container bags containing matters such as plural kinds of seasoning sauce or two kinds of liquids of a two-liquid mixture adhesive are allowed to be cut simultaneously so that the contained matters can be taken out simultaneously. The container bags according to the present invention is such that two continuous container bags for individually containing two kinds of sauce are made of sheets comprising synthetic resin films and are joined together. Further, a fold line for folding up the two container bags is formed in the joint portion, and a notch used to form a contained-matter take-out opening formed at a position on the fold line.