Provided is a fluid storage container capable of definitively preventing an alteration in a fluid stored within a storage chamber thereof, and capable of being easily and inexpensively produced. A container body (1) of a fluid storage container (1A) is provided with a fluid storage section (3) having a storage chamber (5) therein, and a sealing part (4) for sealing one end of the fluid storage section (3) and holding a pouring part (2). The fluid storage section (3) is obtained by layering a fluid-tight film and a light-obstructing and anti-oxidation film. The sealing part (4) is obtained by layering a light-obstructing and anti-oxidation film and a fusible film. A fixed part (14) of the pouring part (2) is held in a valley-shaped section formed in the sealing part (4). When the container body (1) is stored having a fluid (100) stored in the storage chamber (5) thereof, the pouring part (2) and the storage chamber (5) are separated by the sealing part (4).