NOVELTY - The hydrogen generator has a pressurized container (2), a movable partition portion (3) for dividing container (2), a biasing unit (7), external-force transmission portion (8), a reaction container (11), which accommodates a hydrogen-generating agent (12), a reaction liquid supply path (5), discharge suppressing portion (6), a reaction liquid storage container (20), another supply path (10), and a non-return valve (V1) provided in path (10). The path (10) connects path (5) or container (2), and container (20). Valve (V1) suppresses flow from supply path (5) side.    USE - For generating hydrogen gas used as fuel for fuel cell used as energy source.    ADVANTAGE - The hydrogen generator is compact and has simple drive mechanism. The start operation of supply and control of supply amount of reaction liquid is easily performed. The fuel cell supplied with generated hydrogen gas has high electric power generating efficiency.    DETAILED DESCRIPTION - The hydrogen generator has a pressurized container (2), a movable partition portion (3), a biasing unit (7), an external-force transmission portion (8), a reaction container (11), which accommodates a hydrogen-generating agent (12), a supply path (5), a discharge suppressing portion (6) provided in the supply path (5), a storage container (20), another supply path (10), and a non-return valve (V1) provided in the supply path (10). The pressurized container pressurizes and discharges a reaction liquid (1). The portion (3) is positioned such that the pressurized container is optionally divided. The biasing unit biases the movable partition portion and pressurizes the reaction liquid. The portion (8) displaces the movable partition portion by external force. The supply path (5) supplies reaction liquid from the container (2) to the container (11). The storage container stores the reaction liquid. The supply path (10) connects the supply path (5) or the pressurized container more upstream than the discharge suppressing portion, and the storage container. The non-return valve suppresses a flow from the supply path (5) side.    DESCRIPTION OF DRAWING(S) - The figure shows the longitudinal cross-sectional view of hydrogen generator.    Reaction liquid (1)    Pressurized container (2)    Movable partition portion (3)    Supply paths (5,10)    Discharge suppressing portion (6)    Biasing unit (7)    External-force transmission portion (8)    Reaction container (11)    Hydrogen generating agent (12)    Storage container (20)    Non-return valve (V1)