Analgesic pump is composed of a drug box and a pump, the drug box contains opioid analgesics and local anesthetics, by setting the parameters on the pump to make the analgesics according to the dose of infusion into the body. Analgesic pumps are generally used for post-surgical or cancer pain patients, generally the use of post-surgical analgesic pumps 48 hours, cancer patients can be given on demand. The parameters are set according to the personalized analgesic program before use, and the drugs in the cartridge are infused into the body according to this parameter. The analgesic pump is not only suitable for patients who need continuous analgesia, but can also be administered on demand, i.e., the patient can temporarily increase the dosage through the analgesic pump’s refill button when he/she feels pain. Currently, analgesic pumps can be administered intravenously, intrathecally, or intrathecally. The dose limit is set when the analgesic pump is used and can be monitored remotely by the anesthesiologist. The analgesic pump should be used in strict accordance with the doctor’s instructions to avoid over-anesthesia or under-medication.