To provide a storage tray in which flexible tubes are to be stored and with which the efficiency of work to be performed after priming can be improved. A storage tray 1 that stores a flexible tube (L1 to L4) to be attached to a medical apparatus K, the flexible tube (L1 to L4) allowing fluid to flow therethrough. The storage tray 1 includes a tray body 2 that is securable to a predetermined portion of the medical apparatus K and in which the flexible tube (L1 to L4) is storable, and a receiving portion 3 that is included in the tray body 2 and is capable of receiving a priming solution, which is used for flushing the flexible tube (L1 to L4) attached to the medical apparatus K, and storing a predetermined volume of priming solution.
