There are many reasons for developmental delay, and the common clinical rehabilitation training methods include head training, sitting exercise, language training, physical factor therapy and so on. 1. Head training: children with developmental delay can be rehabilitated through head training, first let the child lie on the ground, put a toy in front of the child’s head, and at the same time attract the child’s attention, so that the child can see the toy, and with the toy to move so as to move the head, which can help promote the development of the child. 2. Sitting exercise: effectively help patients in the process of eating, learning, communication can be correct posture, to promote the development of the child’s trunk balance and straightness, with a seated position to carry out other activities. 3. Language training: children should be encouraged to talk more, communicate with others, play language training games, and actively take children to participate in social activities, so as to promote the recovery and development of children’s language function. 4. Crawling training: Crawling training can effectively improve the child’s ability to control the body and limbs. 4. Physical factor therapy: Commonly used treatments such as bioelectric stimulation and low-frequency pulsed electric therapy can effectively improve the symptoms of developmental delay. It is recommended that patients with developmental delay should consult a doctor in time, and under the guidance of a professional doctor, do not blindly train to avoid adverse consequences.