The prevalence of diabetes mellitus in the elderly has been increasing with the aging of the population. Older diabetes people are at a higher risk for malnutrition, and may be more likely to develop frailty. The development of diabetes is associated with progression of frailty, which lead to adverse effect on clinical outcomes. Early identification of frailty and rational nutritional support for the elderly diabetes patients can slow or reverse the process of frailty, improve the quality of life, and reduce the medical burden. This review aims to summarize the current research progress on nutritional management for the frail elderly with diabetes mellitus.