Intermittent fasting,as a dietary nutrition program of fasting and eating alternately,mainly includes alternate-day fasting,time-restricted fasting,periodic fasting and Ramadan fasting.Positive effects of intermittent fasting on metabolic disea-ses such as obesity,diabetes and cardiovascular disease has been confirmed,but its effect on exercise performance is yet to be re-vealed.This paper summarizes the effects of intermittent fasting on anaerobic exercise,aerobic endurance exercise and strength alternation as well as related mechanism.It can provide theoretical reference for diet optimization,intermittent fasting selection and scientific exercise amony athletes,sports enthusiasts and patients with chronic diseases.