ABSTRACT
This article classified children asthma by constitution as deficiency-cold, phlegm-dampness, phlegm-heat, yin-deficiency and yang-deficiency. We categorized children asthma at acute stage by syndrome differentiation as cold, heat, defi ciency and excess; and children asthma at remittent stage was categorized by syndrome differentiation as lung qi defi ciency, spleen yang deficiency and kidney yin deficiency. Patients with the same constitution were treated differently at different stage; and the opposite was true for patients at the same stage but with different constitution. The constitution and the syndrome had a great relationship. It was important for preventing and treating the children asthma that accurate and reasonable constitution differentiation combines syndrome differentiation in clinical treatment.