Objective To explore the effect of regular rehabilitation gymnastics contest on the functional exercise of postoperative patients with breast cancer .Methods Totals of 80 cases of breast cancer were randomly divided into the observation group and the control group , with 40 cases each .In the observation group, taking weeks and months as the time unit , patients were instructed to make rehabilitation exercise and carried out regular rehabilitation gymnastics contest .The ability to complete rehabilitation plan and shoulder joint function in the two groups was evaluated at 4 weeks and 12 weeks after the operation .Results In the observation group, 35 patients can complete rehabilitation plan excellently and 5 patients were at poor level .In contrast to the observation group , 26 patients were excellent and 14 patients were at poor level in the control group (u=5.75, P<0.01).In the observation group, the excellent rate of the shoulder joint function of the suffered limbs was 75.0% and that in the observation group was 47.5%.There was significant difference between the two groups (u=2.54, P<0.01).Conclusions Carrying out regular rehabilitation gymnastics contest among patients after breast cancer operation can improve the effect of functional exercise of the suffered limb.