The oral solution of Jing Ling will not only not affect the IQ of children, but will effectively improve the IQ level of children, because the ingredients of Jing Ling oral solution, mainly including Zhi Mu, Huang Bai, Shu Di Huang, Calamus, Yuan Zhi and other drugs, can play a good effect of nourishing Yin and Yang, nourishing the kidneys and educational. After children suffer from ADHD or delayed brain development, the application of Jingling Oral Liquid can play a significant improvement role, and Jingling Oral Liquid is a pure Chinese medicine preparation, which is relatively safe and suitable for children to apply for a longer period of time. In summary, Jingling Oral Liquid has a certain effect on the improvement of children’s IQ level.