Objective:To study the relationship of physical exercise and chest pain recurrence of CAD,and if physical exercise could reduce rate of chest pain recurrence and improved quality of life.Methods:64 hospitals across China mainland,involving 2401 patients,50 out-patients with CAD in each hospital were included and standard questionaires were used to get relative information on patients demographic,physical exercise,chest pain recurrence et al.Results:It existed significant differences between exercise and chest pain recurrence.Conclusions:Appropriate physical exercise could reduce rate of chest pain recurrence.