E-business document exchange is a very important research topic in the field of e-marketplace. Heterogeneity of ebusiness document syntax and semantics largely hinders the future development of e-business document exchange and much affects the automatic document processing, leading to e-business automation unavailable. A semantic integration approach of SFASFA is proposed to achieve semantic consistency on exchanged documents between heterogeneouse-business systems. It creatively maps a universally meaningful concept onto a range of a sequence of characters only readable by human. The implementation of S FAS FA shows this approach is promising.