Postoperative pulmonary complications (PPC) are one of the most challenging complications faced by patients after cardiac surgery, and are the major cause of postoperative mortality. Electrical impedance tomography (EIT) is a kind of noninvasive bedside lung ventilation monitoring technology which is used increasingly in intensive respiratory management. Recently, it has been found that EIT lung ventilation imaging features can be used to predict the occurrence of PPC after abdominal surgery. Based on the practical experience of EIT application in our center, this paper summarizes the PPC diagnosis and treatment strategy based on EIT lung ventilation image feature, in order to provide reference for the application of EIT technology in cardiac surgery.