Abstract: Objective To explore the effect of breast conserving combined sentinel lymph node biopsy operation on the status of recovery and complication of old patients with breast cancer after operation. Methods The 102 cases of old patients with breast cancer treated in our hospital from February 2012 to February 2015 were retrospective studied.The 42 patients who accepted emulsion combined with sentinel lymph node biopsy operation treatment were selected as study group;while another 60 patients who accepted the traditional operation therapy as control group.On the recovery of operation condition,the results of patients in the 2 groups after operation and complications were analyzed. Results In the operation condition of 2 groups of patients in the study group patients,the total amount of bleeding,operation time,removal of drainage tube time,total drainage volume were (65.2±20.8) ml,(58.4±13.6)min,(5.3±1.1)d,(102.6±20.4)ml;while patients in the control group,the total amount of bleeding operation time,removed the drainage tube time,total drainage volume were (102.3±19.6)ml,(163.2±52.1)min,(29.7±9.8)d,(269.2±10.1)ml.In the aspects of complications,the patients in study group received subcutaneous tissue necrosis,edema of the upper limb,subcutaneous effusion were 1 cases (2.4%),0 cases(0.0%),1 cases(2.4%);the control group of patients with subcutaneous tissue necrosis,edema of the upper limb,subcutaneous effusion were 7 cases(11.7%),16 cases(26.7%),4 cases(6.7%).The postoperative recovery of patients with good psychological state,the study group was 39 cases(92.9%);the study group patients psychological condition of 31 cases (53.3%).Compared to the patients in the 2 groups had significant difference(P<0.05). Conclusion For elderly patients with breast cancer treated with breast conservation,the method combined the sentinel lymph node biopsy operation can have better effect.