An outer cylinder packaging for prefilled syringes that stores plural outer cylinders for the prefilled syringes and is sterilisable or sterilized, the outer cylinder packaging for prefilled syringes comprising: a container having an opening at an upper side of the container and a shape retainable property; an outer cylinder holding member that is stored in the container and has many outer cylinder holding opening parts; the plural outer cylinders for the prefilled syringes that are held by the outer cylinder holding member; and a sheet-shaped lid member that seals the upper face opening of the container and is peerable, wherein each of the outer cylinders for the prefilled syringes includes: an outer cylinder main body part; a flange part that is provided at a proximal part of the outer cylinder main body part, protrudes outward, and is not passable through the outer cylinder holding opening part; a nozzle part that is provided at a tip part of the outer cylinder main body part and has a tip opening part at its tip; characterized in that a distal cylindrical part (70, 71a) that covers the nozzle part, has a diameter that is larger than an outer diameter of the outer cylinder main body part, and is passable through the outer cylinder holding opening part, wherein each of the outer cylinders for the prefilled syringes is hanging in the outer cylinder holding member by each of the outer cylinders for the prefilled syringes being inserted into the outer cylinder holding opening part of the outer cylinder holding member and the flange part contacting a rim of the outer cylinder holding opening part, and further, wherein each of the outer cylinders for the prefilled syringes includes an inclined part (72, 72a) that is positioned at a proximal part of the distal cylindrical part (70, 71a) and is inclined in a proximal direction from an outer edge of the distal cylindrical part (70, 71a) toward an outer peripheral face of the outer cylinder main body part so as to guide each of the outer cylinders for the prefilled syringes to be withdrawn from the outer cylinder holding opening part. a container having an opening at an upper side of the container and a shape retainable property; an outer cylinder holding member that is stored in the container and has many outer cylinder holding opening parts; the plural outer cylinders for the prefilled syringes that are held by the outer cylinder holding member; and a sheet-shaped lid member that seals the upper face opening of the container and is peerable, wherein each of the outer cylinders for the prefilled syringes includes: an outer cylinder main body part; a flange part that is provided at a proximal part of the outer cylinder main body part, protrudes outward, and is not passable through the outer cylinder holding opening part; a nozzle part that is provided at a tip part of the outer cylinder main body part and has a tip opening part at its tip; wherein each of the outer cylinders for the prefilled syringes is hanging in the outer cylinder holding member by each of the outer cylinders for the prefilled syringes being inserted into the outer cylinder holding opening part of the outer cylinder holding member and the flange part contacting a rim of the outer cylinder holding opening part, and further, wherein each of the outer cylinders for the prefilled syringes includes an inclined part (72, 72a) that is positioned at a proximal part of the distal cylindrical part (70, 71a) and is inclined in a proximal direction from an outer edge of the distal cylindrical part (70, 71a) toward an outer peripheral face of the outer cylinder main body part so as to guide each of the outer cylinders for the prefilled syringes to be withdrawn from the outer cylinder holding opening part.