Objective To assess the predictive value of FBG concentration in-hospital outcome in the old patients with AMI.Methods 256 old patients (≥60 years old) with AMI precluding that with history of diabetes were divided into two groups according to serum FBG level:group A,n = 136,FBG ≥7.0mmol/L;group B,n = 120,FBG < 7.0mmol/L FBG concentrations after 7 days,mortality and total cardiac affairs in-hospital were recorded. Results:Among the two group,there were no significance in age,history of hypertension,hyperlipdemia. Compared with group B,the patients with high FBG levels in 7th day were more than group A, about 21% of group A(P< 0.05). Numbers of disease vessels were more than group A(P < 0.05). Cardiac shock,in-hospital mortality and total cordial affairs were significanfly higher in group A(12%vs0% in cardiac shock, 12%vs4% in mortality ,61%vs34% in MACE)(P< 0.05). Conclusion A part of the old patient with high FBG concentrations and AMI have impaired glucose metabolism, admission glucose levels are predictive for in hospital mortality and total cardial affairs.