According to the World Health Organization (WHO), there are 7 million new cancer patients worldwide every year, and at least 4 million of them are suffering from cancer pain, while the pain of advanced cancer patients is as high as 60-90%, and some of them even have severe or unbearable pain. Compared with other pains, cancer pain has two characteristics: First, cancer pain is more intense. Patients often describe it as pain so severe that they do not want to live. The other characteristic is that it lasts longer and is difficult to disappear after it appears, and it will be constantly present, it is a recurring, persistent and worsening process. For this reason, WHO has listed cancer pain control as one of the four priorities of comprehensive cancer planning, and has proposed the goal of “making all cancer patients pain-free” worldwide. It is worth noting that home treatment is now available for difficult-to-treat cancer pain. Cancer is characterized by a long and highly variable disease, which makes treatment difficult. The time of hospitalization for cancer pain patients is relatively short, and most of the time of survival with tumor is spent at home, so it is very important for patients to be treated at home. Nowadays, it has become a trend in developed countries for cancer pain patients to be treated at home. A part of cancer pain patients can take oral painkillers at home under the guidance of doctors. In addition, for some patients with particularly stubborn cancer pain or those who are not satisfied with the effect of medication, they can use PCA, which is a special drug storage pump placed on the patient through a thin tube. There is a self-control button on the top of the pump, so that the patient can press the injection amount when he/she feels pain. Depending on the location, extent and degree of pain, the drug can be injected into the body by three routes: epidural, intravenous and subcutaneous. Generally speaking, patients with pain below the chest and relatively fixed location and extent are suitable for injection via the epidural cavity (PCEA); those with widespread pain or difficulty in puncturing the epidural cavity are suitable for injection via the vein (PCIA) or subcutaneously (PCSA). The pain pump is about the size of a radio, with a buckle on the face, so it can be hung around the waist, put in a pocket, and put on the pillow at night. It can be carried in the pocket when you go out and can automatically pump pain medication 24 hours a day according to the doctor’s settings. The patient also has certain “rights”. When the pain increases, pressing the automatic button will increase the amount of pain medication injected. Patients who are not hospitalized can take the pump home with them after it is placed in the hospital and add medication to the pump at regular intervals, or serious patients who cannot come to the hospital can ask their pain doctor to place it at the patient’s home. The biggest benefit of this new technology is that it improves the quality of survival for patients with advanced cancer, who can move freely and do not have to spend their last days lying in a hospital room. Finally, this modality does have many benefits for patients with advanced cancer pain. It is both convenient and economical, and can be implemented under the guidance of medical professionals or specially trained general practitioners. It can not only relieve family members from many strains, but also facilitate emotional communication and psychological guidance, so that patients can get more end-of-life care in their fading life, so patients with cancer pain can have better results in recuperating at home.