In recent years many patients who have become heavily dependent on medical care live at home. At Daikou Sunadabashi Clinic, we take care of many patients who have malignant tumors, at their homes. They need many medical treatments, so HPN has become a common practice. Here we show our circumstances of HPN. And we introduce our method for HPN. Our method is as follows: (1) Before the patient is discharged from the hospital, we go to the hospital and confirm the patient's condition. (2) We assess the level of training regarding HPN, and select the best way (instruments, circuits, administration) in consideration of the patients' or their families ADL. (3) We select a visiting nurse station (4) and train the visiting nurse in HPN using our manuals. (5) We use an HPN pump. (6) We select a simple way of infusion and adjust it to the patient's condition. In this way, we use HPN easily at home with the aid of a visiting nurse, visiting pharmacist, families, and us.