Abstract: In order to study the wind power coupling electrolysis water to green hydrogen technology for renewable energy consumption, a wind power coupling electrolysis water to green hydrogen experimental platform for renewable energy consumption was built using direct drive permanent magnet wind turbines, AC/DC converters, PEM electrolysis tanks, gas-liquid separation and purification equipment, hydrogen storage equipment, and other devices. The aim was to investigate the effects of different coupling modes, electrolyte concentrations, and electrolysis tank capacities on the efficiency of green hydrogen production. The efficiency ranking of green hydrogen production under different coupling modes is as follows: mixed power supply, stable hydrogen production > main power hydrogen production, surplus power grid connection > main power grid connection, surplus power hydrogen production; the efficiency of producing green hydrogen shows a trend of first increasing and then stabilizing with the increase of electrolyte concentration; the efficiency of producing green hydrogen shows a trend of first increasing and then decreasing with the increase of PEM electrolysis cell capacity. The research results indicate that the coupling mode of hybrid power supply, stable hydrogen production, 35% electrolyte concentration, and 5 MW electrolytic cell capacity are the optimal conditions for wind power coupling water electrolysis to produce green hydrogen.