General anesthesia tracheal intubation has been widely used in pediatric surgery, because the head and tongue of infants and young children are relatively large, the neck is short, the infant’s larynx is high, located in the plane of the 3rd-4th cervical vertebrae, and it is more to the cephalic side and forward, and the epiglottis cartilage is large, which often impedes the vocal folds from being exposed. This makes it difficult to intubate children who need tracheal intubation during surgical anesthesia. Repeated intubation or multiple exposures can easily lead to edema and injury around the vocal folds of the child, which increases the risk of the child and the occurrence of anesthesia complications. Visual laryngoscope utilizes the principle of optical refraction, so that the light can be “bent”, so that in the normal use of ordinary direct laryngoscope our eyes can not see the area (vocal folds, etc.) presented on the display, easy to operate, provide immediate visualization of the airway and laryngeal anatomy and other advantages, so as to solve the difficulty of tracheal intubation in some children. Specific operation steps: 1. Open the laryngoscope lens when the child is about to be admitted to the room, so that it can be fully warmed up, to prevent fog from obscuring the vision of the lens during intubation. 2. After the child is admitted to the room, connect the cardiac monitoring, and induce anesthesia routinely according to the requirements. After the induction is completed, the anesthesiologist stands at the side of the child’s head, holds the visual laryngoscope in his left hand, and gently separates the patient’s lips and upper and lower incisors with his right thumb and forefinger. With the left hand, the lens of the electronic video laryngoscope is fed into the mouth through the incisors along the midline of the tongue. A real-time video image of the oral cavity appears on the monitor, and while observing the monitor image, the video laryngoscope lens continues to be fed to the root of the epiglottis. The position of the laryngeal lens in the pharynx is adjusted with the left hand so that the vocal folds are clearly exposed. At this point, the prepared tracheal tube was bent along the electrolaryngeal lens from the right corner of the mouth, visualized and fed down into the vocal folds, and the core was removed, feeding the tracheal tube to the appropriate depth. Then the tube is slowly withdrawn from the electronic laryngeal lens, the tracheal tube is fixed, and the whole process of intubation is completed in a relaxed and natural state. Previously, anesthesiologists all rely on their own hands to feel a variety of anesthesia operations, in recent years, people have gradually developed a variety of visual instruments, with the help of ultrasound, nerve stimulator and other technologies, tracheal intubation and a variety of puncture techniques such as the gradual development of visual or semivisual instruments assisted by the operation of the technology, which greatly reduces the risk of anesthesia. Similarly, surveys conducted by American counterparts have shown that in recent years, surgery-related complications in all departments have increased, except for anesthesiology, where complications have continued to decline. In the next few years, with the gradual popularization of visualization devices, the Department of Anesthesiology will further improve the level of anesthesia, so as to better provide patients with more high-quality services.