Autism spectrum disorder is a neurodevelopmental disorder that occurs in infancy. Many doctors treat the heart and spleen, spleen and kidney, lung and liver, liver and spleen and other aspects respectively. Professor Liu Ying believes that the cause of autism is the lack of lung Qi and sputum turbidity obstruction. She proposed to treat it from the lungs. Licorice dried ginger soup is spicy and sweet to dissolve Yang, warm the lungs and stomach, dissolve phlegm and reduce turbidity, and the clinical effect is remarkable.