Objective The therapeutic effect of Behcet’s disease treated by Yiqi Tuodu Decoction was observed.Methods The patients enrolled were randomized into the Chinese medicine treatment group and western medicine control group.The treatment group was treated by Yiqi Tuodu Decoction（Decoction for nourishing qi and expelling toxin）

200ml each time

twice a day.The control group was given prednisone 10mg each time

twice a day.Two months in succession constitute one course and then the therapeutic effect was evaluated.Results The difference of two groups in the total effective rate

symptoms

lab index improvement and recurrence reduction was significant（P<0.05）.Conclusion Yiqi Tuodu Decoction is very effective in the treatment of Behcet’s disease.