NOVELTY - Improving protein biological hydrogen production comprises: (a) protein waste water ultraviolet irradiation pre-treatment: adding protein waste water into the ultraviolet pre-treatment device, opening the ultraviolet lamp with ballast, using immersion model underwater radiation, keeping the ultraviolet exposure strength at 1 to 40 watt per liter of waste water, the thickness of the water layer is 2 to 10 centimeters ; and (b) processing biological hydrogen production to the pre-treated protein waste water under neutral pH condition.    USE - The method is useful for improving protein biological hydrogen production (claimed).    ADVANTAGE - The method can respectively improve the biological conversion rate and hydrogen output of the protein for 2.79 times and 2.99 times.    DETAILED DESCRIPTION - Improving protein biological hydrogen production comprises: (a) protein waste water ultraviolet irradiation pre-treatment: adding protein waste water into the ultraviolet pre-treatment device, opening the ultraviolet lamp with ballast, using immersion model underwater radiation, keeping the ultraviolet exposure strength at 1 to 40 watt per liter of waste water, the thickness of the water layer is 2 to 10 centimeters, meantime opening the magnetic stirrer and circulating cooling water, keeping the temperature of the protein waste water in the ultraviolet exposure procedure to 20 to 25 degrees C, processing ultraviolet exposure for 0.5 to 10 hours, and obtaining the pre-treated protein waste water; and (b) processing biological hydrogen production to the pre-treated protein waste water under neutral pH condition: adding the pretreated protein waste water which is obtained by the step (a) into the anaerobic reactor, inoculating the anaerobic activated sludge which is treated by heating, making the concentration (SS) of the activated sludge in the anaerobic reactor 3500 to 4500 milligrams per liter; then adding microelement and chloroform, adjusting the pH value of the mixture to neutral, spraying the anaerobic reactor with nitrogen for 2 minutes, sealing with rubber plug, keeping the anaerobic state, putting the anaerobic reactor in the mesotherm condition, anaerobic fermenting for 72 to 96 hours in the shaker, and heating treatment, detecting the volume of hydrogen and the content of hydrogen of the anaerobic reactor for once every 12 hours, keeping the PH value of the solution in the anaerobic reactor to neutral in the whole procedure; the adding amount of the chloroform is 0.01 to 0.05 percent of the volume of the protein waste water, the adding amount of the microelement is 0.33 percent of the volume of the protein waste water.