At present, patient infusion calls in many hospitals depend on patients, their families and medical staff, which largely depend on the subjective attention of patients and their families and the management of transfusion by medical and nursing personnel. It often occurs when the drip is finished without timely calling and handling, which carries certain risks, increases the burden and pressure on patients and their families, and also brings problems to doctors and nurses. In this paper, the needs of doctors, patients and family members are analyzed, and a computer-controlled medical infusion calling equipment is designed to solve this problem well.