RESUMEN
The multi-central clinical records retrospective survey for psoriasis vulgaris was carried out by collecting related information such as demographic, diagnostics, therapeutics, efficacy evaluation, nursing data, and so on. The Uygur medical differentiation classification standard about psoriasis vulgaris was established and it was divided into four types:abnormal Khan Hilit type, abnormal Sapra Hilit type, abnormal saltness Balgham Hilit type, and abnormal Sawda Hilit type, according to main symptom and secondary symptom feature. The disease efficacy evaluation standard was established based on score of surface area and severity of skin injury combining with the changes of main symptom and secondary symptoms. On the basis, guidelines for clinical research of new drugs of Uygur medicine used in the treatment of psoriasis vulgaris were formulated in accordance with the technical requirements and procedure of national center for drug evaluation.