Diabetes mellitus is a systemic disease that can involve many organs. After 5-10 years of diabetes mellitus, it can involve the heart, kidneys, nervous system, and cerebrovascular system, and the symptoms of each system appear. When the heart is involved, diabetic heart disease occurs, which can cause systolic dysfunction and conduction dysfunction of the heart, and is prone to cardiac insufficiency or heart failure. At the same time, diabetes mellitus can also cause kidney disease, because heart disease and kidney disease interact with each other, so it is prone to deterioration of the heart disease and kidney disease each other. In the early stage of kidney disease, when there is diabetic nephropathy stage Ⅰ or Ⅲ, Ⅳ, Ⅴ, a large amount of proteinuria or creatinine increase, thus appearing in the body of the edema situation, at this time the heart failure can appear at the same time. Heart failure caused by diabetic nephropathy, if the drug effect treatment is not good, you must apply the machine to dehydrate, such as hemodialysis commonly used in hemofiltration, the kidney and heart disease treatment at the same time. If the treatment is not effective, heart failure due to diabetic nephropathy can easily cause death.