Abstract: Provided is a tight fastening type size-free container carrying bag which has a simple configuration, can be manufactured at a low cost, and can be reliably fit to various shapes of containers size freely to stably hold the containers. Employed is a technical means corresponding to a bag body in which a pair of sheet materials made of a thermoplastic resin material faces and overlaps each other, an opening is formed at a top portion, and a bottom surface is included at a bottom portion, wherein at least one container holding portion is formed in the bag body, wherein a holding zone in which a plurality of spot joining portions formed by joining inner surfaces of both the sheet materials of the bag body each other in dot shapes is provided is formed in the container holding portion.