NOVELTY - Seawater electrolysis and fuel cell complex system comprises: e.g. a sea water electrolysis unit (110) for electrolyzing introduced seawater, a seawater supply unit (120) for supplying seawater into the seawater electrolysis unit, a gas-liquid separator (130) for separating a liquid and gas from the electrolyte which is obtained from the seawater electrolysis unit, a sodium hypochlorite storage tank (140) for storing the sodium hypochlorite solution which is discharged from the gas-liquid separator, a water removal unit (150) for removing a moisture present in the gas.    USE - Used as seawater electrolysis and fuel cell complex system.    ADVANTAGE - The system can produce power from the discharged hydrogen and recycles the resources.    DETAILED DESCRIPTION - Seawater electrolysis and fuel cell complex system comprises: a sea water electrolysis unit (110) for electrolyzing introduced seawater, a seawater supply unit (120) for supplying seawater into the seawater electrolysis unit, a gas-liquid separator (130) for separating a liquid and gas from the electrolyte which is obtained from the seawater electrolysis unit, a sodium hypochlorite storage tank (140) for storing the sodium hypochlorite solution which is discharged from the gas-liquid separator, a water removal unit (150) for removing moisture present in the gas which is discharged from the gas-liquid separator, a gas purifier for refining the hydrogen gas of high purity from the gas, where the moisture is removed in the water removal unit, a fuel cell for producing a power by using hydrogen gas which is supplied from the gas purifier. The seawater electrolysis unit is provided with seawater inlet and electrolyzed water outlet, electrolytic cell which is non-diaphragm provided internally with an anode and a cathode and power supply unit for supplying direct current power for anode and cathode respectively, where the concentration of the generated sodium hypochlorite solution is 500-6000 ppm.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic processing of the seawater electrolysis and fuel cell complex system.    Seawater electrolysis unit (110)    Seawater supply unit (120)    Gas-liquid separator (130)    Sodium hypochlorite storage tank (140)    Water removal unit (150)