After cardiac surgery, the patient’s heart, lungs, kidneys, brain and other functions are in an unstable state, and abnormal changes are detected in a timely manner through monitoring and immediately corrected by applying advanced medical technology and equipment, so as to enable the patient to pass through the dangerous stage. The monitoring room is directly related to the safety and recovery of surgical patients, and is one of the key links to improve the success rate of surgery. The following is a brief introduction to the monitoring room. (1) The monitoring room is equipped with modern monitoring equipment and trained nurses, 24-hour duty system in the monitoring room, medical staff guarding the patient around the clock, at any time to monitor the patient’s vital signs, the patient has an accident, the rapid organization of resuscitation. (2) Patients entering the monitoring room are all post cardiac surgery and critically ill, due to the relative concentration of patients, the chance of cross-infection is higher, so the patient’s family members declined to enter the room to visit or accompany. (3) When the patient enters the monitoring room, the medical staff will quickly connect the ventilator, cardiac monitoring line, arterial pressure gauge, central venous pressure tube, urinary catheter, gastric tube, infusion pump, etc. These wires and tubes are used to monitor and control the patient’s condition. These wires and tubes are important tubes for monitoring and sustaining life, and the patient must cooperate closely and not pull them out on his or her own to avoid accidents and life-threatening situations. In order to help the patient safely pass through the intubation stage, healthcare workers usually have to use a restraining belt to fix the patient’s hands or feet beside the bed to prevent the patient from pulling out the tubes by himself when he is not conscious, and various tubes can be pulled out one after another after the condition is stabilized in the first 1-3 days after the operation.