The invention relates to a production method of a titanium foil, and specifically relates to a production method of a titanium foil for a high-frequency voice diaphragm. According to the production method, a titanium alloy rolled plate is adopted, and a titanium foil for the high-frequency voice diaphragm is prepared through the steps of rolling, cleaning, pulling and straightening, annealing and the like. The titanium foil prepared by adopting the method for the high-frequency voice diaphragm is high in strength, good in sound effect and high-pitch front edge effect, long in service life, wide in frequency response and capable of improving distortion.