Presently used physical and chemical consolidation method have deficiencies and restrictions for consolidating fragile silk textiles. Fibroin protein, because of its homology and compatibility with silk, has been used to consolidate Qing Dynasty silk. Qing Dynasty silk textiles were treated by 1.0[percent] fibroin protein solution for 40 minutes and then in 0.005[percent] glutaraldehyde solution for 60 minutes. The results showed the consolidated textile’s breaking strength point improved from 5.22N to 10.68N; elongation rate at the breaking point improved from 3.24[percent] to 4.12[percent]; and flexural stiffness improved 0.06x10-2 mN[middle dot]m. FT-IR, TG and SEM were used to characterize the textiles before and after the treatment. The experimental results indicated that consolidation of ancient silk textile using fibroin protein is effective. This treatment can improve the intensity of the ancient silk textile while leaving the appearance and feel unchanged.