The nidi of atopic dermatitis are lung and spleen with heart, liver and kiney involved. The etiology is wind, dryness, dampness and toxin combating in the skin. With the ambushing fetal toxicosis, the manifestation shows mainly wind, dampness and heat in the early stage. In the late stage, the menifestation shows mainly dry skin with damaged yin, blood deficiency with phlegm and blood stasis. The treatment mothods include: heat-clearing, dampness-relieving, wind-repelling and itchiness-relieving, spleen-strengthening, yin and blood nourishing, and blood invigorating. This research paper is a result of archive searching in the China journal website, analysis of prescription of different treatment methods, and discussion of two actual case studies of clinical treatments of atopic dermatitis.