According to the theory of spread of the five internal organs disease of Neijing, Professor YAN Shi-yun thinks that chronic heart failure has the pathogenesis characteristics that the disease is in the heart and it spreads of the five internal organs.First of all, he clarifies the physiological basis and pathological relationship between the heart and the other four organs which often appears as the relationship between heart and lung disease, heart and kidney disease, heart and spleen disease, heart and liver disease.Then he treats chronic heart failure with flexible approach and uncertain law as a therapeutic.It includes the harmonization of yin and yang, and the harmonization of the techniques, the support of the righteous and the elimination of evil, and the application of both general and complementary methods, as well as the complexity of the symptoms and the fact that the prescriptions are not too complicated.The method is expounded from four aspects:treat of heart failure with reinforcing the spleen and stomach, benefiting the kidney, caring for the lung, and strengthens the liver.Therefore, he creates Yanshi Qiangxin decoction that warm the heart and kidney Yang mainly and give consideration to induce diuresis for removing edema as the basic prescription to treat heart and kidney Yang deficiency syndrome clinically which is a basic and empirical prescriptions.And he inherited the fine tradition of Ding's internal medicine of making good use of pills and medicines in conjunction with each other, while focusing on the regulation of sleep, with his distinctive features of both theory and prescriptions, which are clinically effective.This is a continuous innovation based on the inheritance of classics, which is worth summarizing and promoting.