This paper explored preparation conditions of medical stone solution with different particle size ranges,selected nano medical stone with particle size less than 20 nm to prepare silk fibroin-nano medical stone blended porous material,and tested material structure. FT-IR and XRD results show that,nano medical stone has no significance effect on secondary structure of silk fibroin,but can induce formation of silk I crystal structure of silk fibroin; blended material soaked by deionized water shows significan...