Philosophy and theories of Thai traditional medicine in Chaw-Wadan and Munchu-Saravichean medical scriptures which mention about inner-body circulation (Lom). Kutta-Rok and Paichit-Mahawong medical scripture which mentions about skin diseases. Muk-Ka-Rok medical scripture which mentions about diseases of mouth and throat. Chalanasangkhaha-Taat-Banchob , Uthorn-Rok and A-Dhisarn medical scriptures which concern diseases of G.I. tract. Tip-Mala medical scripture which concern internal abscess and A-bhaisanta medical scripture. Analyzing content of those theories according to Thai traditional medicine concept and integration the knowledge of Thai traditional and western medicine.