Objective:To understand effects of bFGF on Triptolide in rheumatoid arthritis synovial organization and discuss the influence of tripterygium wilfordii treatment mechanism of rheumatoid arthritis.Methods:Use immunohistochemical techniques to detect expression of bFGF in the AA rats in the organization of the synovial organization,and to observe the effects of tripterygium wilfordii.Results:The tripterygium wilfordii group showed a few of positive bFGF cells,compared with the experimental group,it had significant difference(P0.01).Conclusion:Triptolide can reduce the expression levels of bFGF in synovial organizations and inhibit angiogenesis,playing a therapeutic role.