Objective To comparative analysze of the applications value of breast-conserving surgery and improved surgical in breast cancer patients.Methods One hundred and sixty-eight female breast cancer patients from February 2005 to October 2010 in the People's Hospital of Rizhaoour hospital were selected.The patients were divided into breast-conserving surgery group (n =80) and improved surgical group (n =88).The patients in two groups were followed-up and investigated for three years.Operative time,blood loss,postoperative drainage,postoperative drainage time and hospital stay,incidence of complications,local recurrence,distant metastasis and survival after 3 year,satisfaction ratio of breast cosmetology,psychological anxiety scores and quality of life scores after 3 years of the patients in two groups were compared and analyzed.Results The complication rate of breast-conserving surgery group was 12.50％ (10/80),lower than the improved surgical group,and the difference was significant statistically (29.55％ (26/88),x2 =7.23,P＜0.05).The operative time ((72.68±5.28) min),blood loss ((39.21 ± 8.59) ml),postoperative drainage ((162.25 ± 28.56) ml),postoperative drainage time((8.16±2.58) d) and the length of hospital stay((11.43±1.98) d) of the patients in breast-conserving surgery group were lower than those of the improved surgical group,and the differences of two groups were significant statistically ((92.48 ± 6.01) min,(68.26 ± 10.23) ml,(343.29 ± 62.18) ml,(16.59±4.96) d,(18.47±2.94) d;t =22.72,19.99,24.61,13.99,18.35;P＜0.05).The satisfaction rate after 3 years of breast-conserving surgery group was 92.50％(74/80),higher than that of the improved surgical group,and the difference was significant statistically (81.82％ (72/88),x2 =4.20,P＜ 0.05).The psychological anxiety scores after 2 and 3 years of breast-conserving surgery group were (40.02 ± 2.63) points and (34.26 ± 3.59) points,lower than those of improved surgical group((42.58±2.37) points and (39.85±2.10) points),the quality of life scores after 3 years of breast-conserving surgery group was (67.58± 11.26)points,higher than that of improved surgical group ((50.85 ± 10.42) points),and the differences were significant statistically (t =6.60,12.16,9.96;P ＜ 0.05).Conclusion Breast-conserving surgery could reduce the incidence of complications and psychological anxiety situations,improve clinically relevant indicators and satisfaction ratio of breast cosmetology and quality of life for the breast cancer patients.