Abstract： Objective To explore the correlation between blood glucose and postoperative recovery of pancreatic cancer patients with diabetes.Methods According to the level of glycemic control after operation,68 cases of pancreatic cancer patients with diabetes were divided into two groups,including 34 cases of intensive control group (blood glucose 4.4 ～ 6.1 mol/L),34 cases of control group (blood glucose 6.1 ～11.1 mol/L).Fasting blood glucose (FBG),fasting insulin (FINS) and C reaction protein (CRP) in all patients were detected at 1st,3rd and 7th day after operation,and the recovery condition,postoperative complications and other clinical data were compared and analyzed.Results FBG,FINS and CRP in intensive control group were (6.94 ± 0.94) mmol/L,(17.38 ± 7.37) mmol/L,(108.33 ± 37.25) mg/L,and in control group were (7.81 ± 1.36) mmol/L,(23.73 ± 8.25) mmol/L,(131.51 ± 42.34) mg/L at 3rd day after operation.There were significant difference in serum FBG,FINS and CRP level between the two groups at 3rd day after operation (P ＜ 0.05).Compared with control group,postoperative duration of fever [(1.4 ± 0.8) vs (2.5 ± 1.1) d],duration of antibiotics [(3.1 ± 0.7) vs (4.6 ± 0.8) d] and time of anal exhaust [(2.5 ±0.5) vs 93.7 ± 0.8)d] in intensive group were significantly reduced (P ＜ 0.05).The wound infection rate in intensive control group was significantly decreased (5.9％ vs 23.5％,P ＜0.05),the rate of mortality and other postoperative complications between the two groups was not statistically significant (P＞0.05).Conclusions Intensive glycemic control can contribute to improve insulin resistance,reduce inflammation reaction and improve the prognosis of postoperative pancreatic cancer patients with diabetes,and it does not increase the postoperative complication rate.