Abstract: Deterioration silk was treated by fibroin protein and the cross-linking agent glutaraldehyde and the property changes of the deterioration silk were studied. The results showed that the deterioration silk was treated by 1.0% fibroin protein, 0.005% glutaraldehyde, treatment time in silk protein solution (t1) 40 min, and that in glutaraldehyde (t2) 60 min, the consolidation effect of fragile silk fabrics was satisfactory, aging resistant performance was improved, at the same time ,the consolidated fabrics had a good sense of touch and nice appearance.