Children, due to their psychological development, have limited comprehension, are less independent, and are highly dependent on their parents. Moreover, due to the noise and vibration of the drilling machine and the use of sharp instruments such as probes and tweezers in the dental treatment process, children often use the right to have extreme fear and strong resistance to dental visits. Therefore, children’s dental treatment should go to a professional children’s oral health care clinic. There, the child will get professional treatment and good psychological care. The principle of treatment in pediatric dentistry is: safety first. Any therapeutic measure that may cause physical and psychological harm to the child is absolutely contraindicated. For uncooperative children, pediatric dentists commonly use the TSD method and the HOM method. The TSD method (Tell Show Do) is one of the realistic practices to eliminate fear in children. T: is to explain the necessity of dental treatment to a child who has some understanding; S: is to show the child the instruments, machines, materials, etc. used for treatment, as well as to watch other children’s dental treatments; D: is to use a mirror to see one’s own teeth and the treatment operation, and then to actually perform the operation in the child’s mouth. The HOM method (Hand Over Mouth) is most effective for children who have some degree of understanding and are crying violently. By covering the crying child’s mouth with a hand and covering the eyes, the child goes from over-excited to temporarily inhibited. Then tell the child to move his hand away if he obeys, or else cover him again, and so on until he cooperates. Children under 3 years of age who do not understand the doctor’s explanation can be forced to take treatment. After obtaining the understanding of the parents, the treatment is carried out with the use of restraints and openers to ensure medical safety. Children’s dental treatment requires the cooperation of children, parents and doctors. Parents should not give their children some bad hints on the way to see the dentist, such as “you can’t cry during the dental visit, you have to bear the pain”, “you can’t move during the injection”, etc. In fact, the development of modern dentistry and the use of painless treatment technology make the dental visit less and less painful. In addition, young children, the dependence on parents is strong, the treatment process requires parents to wait outside the clinic, which requires the understanding and cooperation of parents. A professional pediatric dentist should not only have professional skills, but also have a wealth of knowledge about child psychology. When talking to children, it is important not to use words that are beyond their ability to understand, but to use kind and easy-to-understand language to gradually eliminate their fear and relax their nervousness. At the same time, we should always pay attention to the feelings of parents and children, and any treatment measures should be carried out only with the consent of parents. Treatment, medical and nursing should be careful to use the content of the treatment of the limited language, such as “on some medicine to go home”, “look at the mouth on the go”, should not be used to compensate for the language, such as “obedient to let your mother to buy a ……”, etc., so as not to create difficulties for parents. In short, the treatment of children’s dentistry requires the joint cooperation of children, parents and health care professionals. Parents choose a professional clinic for their children and the patient and careful education before the consultation is the premise of successful treatment, while the good professional quality of the medical staff and the accurate grasp of the child’s psychology in the treatment process is the guarantee of successful treatment.