Objective:To guard tertiary prevention of diabetic foot ulcer,we investigated danger condition of diabetic foot.Methods:General clinical data,results of laboratory examination,and foot ulcer correlated contents including foot condition were screened using diabetic foot diagnose box(Huntieigh;England)in 148 cases of diabetics.Gavin′s risk factors of diabetic foot were assessed with weighted value integration.Results:28 hyp-danger foot(18.92%),69 moderate danger foot(46.62%),43 high danger foot(29.05%) and 8 normal foot(5.40%) were identified.Conclusion:The risk of foot ulcer in diabetics is high.To prevent diabetic foot development and decrease mutilation and fatality,we should strengthen diabetic foot screening and tertiary prevention of diabetic foot according to foot ulcer danger classes.