The crease-resistant finishing of silk fabrics with the mixture of silk fibroin /SRD787(the main composite BTCA) was studied systematically.The results indicated that when the hydrolyzing time of silk fibroin attained 2 hours,the finishing effects of silk fabrics were better.The orthogonal experiments identified that the best technology of crease-resistant finishing of silk fabrics with fibroin/SRD787 DP finish was that the ratio of fibroin to SRD787 was 2 to 3;the concentration of finishing agent was 5 %;the concentration of catalyst NP756 was 2 %;curing temperature and time were 160 ℃ and 150 s respectively.Wet crease recovery angles increased 37.0 %the color depth fell a little after finishing.