A vacuum evaporation apparatus comprises a carbon nanotube film structure within an evaporating source, a depositing substrate, and a vacuum room. The evaporating source and the depositing substrate are located in the vacuum room. The depositing substrate and the evaporating source are faced to and spaced from each other. The evaporating source includes an evaporating material, a carbon nanotube film structure, a first electrode, and a second electrode. The first electrode and the second electrode are spaced from each other and electrically connected to the carbon nanotube film structure. The carbon nanotube film structure is a carrier to carrying the evaporating material. The evaporating material is located on a surface of the carbon nanotube film structure.