CCEI APP is a professional medical application，it integrates various functions, including basic education and training, clinical behavior guidance and quality control, based on clinical experience and research evidence from international and domestic elite experts. CCEI APP can help emergency physicians and intensive care physicians to improve clinical and treatment efficiency, and improve the consistency of treatment and care behavior. By applying APP, young doctors can directly use effective clinical protocols determined by experts, collect patient data in a timely manner, and interact with elite experts. In addition, experts can provide professional training and telemedicine support to medical staff in remote areas through this application. By using this application, experts can expand the high quality of medical services to a greater extent, thereby improving the level of medical services in remote areas.