Abstract: Using literature review, questionnaire and interviews, the key time sequence node data for the growth of 175 Olympic champions were analyzed.It is found that: ① The average training time to become Olympic champions is 13.85 years.In the time sequence of the entire growth stage of Olympic champions, the youth training period is the longest (average 5.66 years) and has great gender and event group differences. There is an inverse relationship between the training start age and the training start period.As long as adolescent training is within a reasonable age range, it will be "the same" success sooner or later, but premature specialized training may not be conducive to the rapid development of the elite level in adulthood.② In comparison, the phenomenon of "male long female short" for the time sequence of Olympic champions'growth is more common, and the characteristics of physiological development of "male late, female early"are not the only basis for the start of training.③ The age of the start of training is more reasonable according to the characteristics of the sports.It is recommended to divide it into 3 age groups of young, middle and old.The athlete of individual event that compete against each other across the net which are known to be China's dominant event are the typical "start training at a very young age and need to train carefully" and become a talent late, but not suitable for most events of strength and condition.Male athletes in the endurance event group may start late and become quick.