It is often seen clinically that after suffering from diabetes for a long time, many people will experience palpitations, chest tightness, chest pain, shortness of breath, and even dizziness, which belong to the range of cardiac diseases, also known as diabetic heart disease. Diabetes can occur as a complication of the heart, which is considered by Western medicine to be related to insulin resistance, hyperglycemia, disorders of lipid metabolism, abnormal myocardial metabolism, and microcirculatory disorders. According to Chinese medicine, diabetes belongs to the scope of “thirst disorder”, which consumes body fluid, causes dryness and heat, and concentrates blood, which can lead to poor blood flow. The heart is the main blood vessel, so it affects the heart. This disease belongs to the evidence of deficiency of Qi and Yin, phlegm and blood stasis, and paralysis of the heart veins. Chinese herbal medicine can be chosen for clinical management. It is a good choice to take poultices in winter to regulate the diabetic body.