Generally speaking, the diagnosis of vocal tics can be made from the following aspects: first, the accompanying symptoms of the child, as vocal tics are often accompanied by motor tics, such as involuntary blinking of the eyes, nuzzling of the mouth, and shrugging of the shoulders. Secondly, the characteristics of vocal tics are mainly caused by involuntary laryngeal muscle spasms, and children’s twitching sounds are often very short and rapid, and the symptoms are often mild and severe. In addition, it can be judged from the effect of treatment. After the application of thiopride hydrochloride, the vocal tics of children are greatly reduced, which can confirm that children belong to vocal tics.