When a child has poor comprehension and slow response, he or she can first consult a doctor for examination to clarify the specific cause of the disease, and can also improve the performance of poor comprehension and slow response by communicating with each other, participating in early childhood education activities, supplementing nutrition, and guaranteeing sleep etc. 1.Consultation and examination: When a child has poor comprehension and slow response, he or she can first undergo an intelligence test, which can be performed using different test scales to determine the child’s motor development, memory, mobility and other aspects. Different test scales can be used to make a comprehensive judgment on the child’s motor development, memory, action ability and other aspects. Meanwhile, toxic encephalopathy, myotonic dystrophy and congenital cerebral palsy should be ruled out, which will also affect the child’s intelligence, and if necessary, the child can go to the hospital for magnetic resonance or electroencephalogram to make a clear diagnosis; 2. More communication: when the child has poor comprehension and slow reaction, parents should communicate with the child more often and can play games or sports with the child. In the process of communication, the child’s ability to understand, including hands-on ability and reaction, will be improved to different degrees with the depth of the activity; 3, participate in early education activities: parents can take their children to early education activities, which will help improve the child’s ability to understand and improve the slow reaction. According to the child’s age to learn the function of daily objects, categories, let the child according to the characteristics of the object to point out the object, with the course, and constantly increase the cognitive difficulty, so as to improve the poor comprehension, slow reaction; 4, supplemental nutrition: also need to pay attention to the child to replenish the adequate amount of nutrients, including supplemental calcium, zinc, and other trace elements, and eat more vitamin-rich fruits and vegetables, such as spinach, celery, oranges, etc., can also eat more walnuts, pine nuts and other nuts, which contain lecithin, vegetable protein and other ingredients, can to a certain extent to promote brain development; 5, ensure sleep: the child should have enough sleep, can promote the blood circulation of the brain, and sleep when the brain can be fully rested, for the stabilization of emotions, focus on memory, and other cognitive functions, have a certain effect on the improvement of 0-6 years old is the child’s brain development of the brain, and the brain can be fully rested, for the stabilization of mood, focus on memory and other cognitive functions, have a certain effect on the improvement of the brain. 6 years old is the rapid period of children’s brain development, parents should seize this period of brain development, more communication with the child, take the child out to play, in the process of playing, a variety of skills, including the ability to react will have different degrees of improvement. Since there are individual differences in children’s growth and development, parents do not need to be overly anxious, if the child appears to be significantly different from his or her peers, he or she can go to the hospital for consultation.