The invention discloses a hydrogen energy automobile carbon fiber product forming mold and a forming method, and relates to the technical field of hydrogen energy automobile carbon fiber product formation. The hydrogen energy automobile carbon fiber product forming mold comprises a single-face mold, a vacuumizing pipe and a compressed air rapid connection port, wherein a mold cavity is formed in the center of the upper end of the single-face mold, metal net plugs are arranged on the two sides of the upper end of the single-face mold, the vacuumizing pipe is connected to the lower ends of the metal net plugs, the other end of the vacuumizing pipe is connected with a vacuumizing quick connector, and a heating/cooling pipe is arranged inside the single-face mold and located on the outer side of the mold cavity. According to the hydrogen energy automobile carbon fiber product forming mold and the forming method, the heating/cooling pipe is a pipeline shared by heating and cooling, water vapor is adopted to replace traditional heat transfer oil during forming, and cold water is used for cooling during cooling, so that the pipeline shared by heating and cooling is achieved, two sets pipelines do not need to be designed, the mold manufacturing period is shortened, and meanwhile the cost is reduced; and in addition, the water vapor is used, compared with the heat transfer oil, the heating rate is increased by more than 50%, the energy consumption cost is reduced, and meanwhile, the production efficiency is improved.