The age data of 62 + 2 Olympic women throwing champions are analyzed and estimated by Bayesian statistical method, which is instructive for women's throwing events in China in the reserve force building-up and the succession of the new to the old. The study shows that the optimum age for woman championship at shot put, javelin throw and hammer throw is 24, 25 and 30 years old respectively, and is 27 to 28 years old at discus throw. Among them, women's shot put is more sensitive to age intervention. The estimated age for future event’s championship is: women's hammer throw (30.20 years old)>women's discus throw (26.84 years old)>women's shot put (26.40 years old)>women's javelin throw (25.98 years old). Among them, discus and javelin champions tend to be "younger", while shot put and hammer throw tend to be "older", and the best championship age for each event changes the same way; the future championship competition years are compared as: women shot put > women javelin throw > women discus throw, and hammer throw, due to different prior information, cannot be included in the comparison, but all years have been lowered. In the year 2020 Tokyo Olympic Games, women's discus throw is most promising for Chinese women's throwing events.