Abstract: Providing knowledge is the service way of Knowledge-Intensive Business Services (KIBS). Through knowledge sharing, knowledge shifting, developing and using the knowledge of enterprises deeply, KIBS have promoted the innovation activities of one's own and other enterprises, have taken on the important role in the whole innovation system. This study starts with analyzing KIBS’ characteristics, development background, constructs the three-stage system of growth path, hopes to play a summarizing and guiding role for the growth of KIBS and wants to cause the concern of theoretical research about this kind of enterprises.