Abstract Today, in the industrial circumstance, to increase product¡¦s values are one of the primary sources of increasing competing edge. The product¡¦s value always base on continuous innovation of products and working methods. The findings of product¡¦s research and development (r&d) are the expertise of the business, so-called ¡uknow-how¡v. Whether these knowledge can be effectively spread, shared and reused, has significantly influenced on business. Therefore, effectively managing know-how becomes important issue of business. This paper proposed a framework and methodology for knowledge modeling. By use it to construct the knoweledge access architecture. The results provide a useful basis for reducing the time of r&d and increasing the product¡¦s value.