When cognitive dysfunction occurs in craniocerebral injury, orientation training, attention training, abstract thinking training, learning ability training and other training methods should be carried out according to the patient’s condition. 1. Orientation training: Every day, patients are stimulated with questions and answers about space and time, and they are trained to ask and answer questions about up and down, left and right, geographic location, time and place. 2. Attention training: Through guessing games, deleting Chinese character narratives, and letting the patient count, the patient’s time and content are enhanced to improve attention. 3. Abstract thinking training: Definition of different concepts, categorization of objects to find out the correlation between different things, to help patients improve the ability to analyze and solve problems. 4. Learning ability training: help patients to improve the ability of daily life training, such as mopping the floor with a mop, arithmetic, learning to use tools and other ability training. It is suggested that patients with craniocerebral injury should carry out cognitive training as early as possible, and should be trained scientifically under the guidance of doctors so as not to delay their condition.