A wind power and hydrogen power complex generating device includes a fan assembly having a blade unit and a demultiplexer connected to the blade unit. A heating unit is connected to a first output end of the demultiplexer. A pump is connected to a second output end of the demultiplexer. The pump pressurizes liquid water. A heating assembly is connected to the pump and the heating unit. The heating assembly heats the liquid water into a critical state. An electrolyzing unit includes an input end, a hydrogen output end, and an oxygen output end. The input end is connected to the heating assembly. The electrolyzing unit electrolyzes the liquid water in the critical state into gaseous hydrogen and gaseous oxygen. A fuel cell unit includes an anode passage connected to the hydrogen output end and a cathode passage connected to the oxygen output end.