Abstract：The aging of Taiwan's population has brought about a constant rising prevalence of type 2 diabetes. Improving the lifestyle of middle-aged and older adults to maintain a healthy quality of life has become a public health challenge. The purpose of this article is thus to summarize the empirical studies on the intervention of walking exercise in middle-aged and older patients with type 2 diabetes, to understand its health benefits and potential mechanisms for the target group, and then hopefully to provide a reference for future strategies in exercise behavior and health promotion. Overall, the intervention of walking exercises has been proven to effectively reduce the risk of cardiovascular disease-related complications in patients with type 2 diabetes. Members of the target population could participate in walking exercises with community partners' support to maintain their motivation and improve their quality of life. Based on the evidence-based articles, this article summarizes the health and behavior of walking exercise applied to older patients with type 2 diabetes and offers suggestions, including: increasing physical activity; increasing exercise duration, frequency, and intensity; and promoting community-based peer caring and support. Walking exercise could effectively promote blood sugar control, improve blood indicators, increase energy consumption, and improve quality of life. However, there is still not much research evidence on the intervention of walking exercises for middle-aged and elderly diabetic patients. Future studies could incorporate wearable devices to assess physical activity levels and explore the impact of walking exercises on health benefits among middle-aged and elderly diabetic patients. (Full text)