To provide cell storage containers in which a tubular part where the cell storage chamber and a tube are provided can be arranged and shaped arbitrarily, and to provide manufacturing methods thereof.SOLUTION: A cell storage container 1 is provided with a cell storage chamber 10, a tubular portion 20, and a tube 30 arranged in the tubular portion 20, and the tubular part 20 is configured to comprise a first tubular portion 21, which has an inner diameter that is at least as large as the outer diameter of the tube and has at least the same length as the tube length, and a second tubular portion 22, which is provided between the first tubular portion 21 and the cell storage chamber 10 and has an inner diameter smaller than the outer diameter of the tube.SELECTED DRAWING: Figure 1

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