The purpose of this study is to know the current situation and trend of silicon wafer distributor industry by colleting theses, documents, and industry analyses. There are also some suggestions of business strategies for A company by the analyses of SWOT and Porter five forces analysis. This study found very competitive situation of silicon wafer distributor industry in the whole world now. Tier one suppliers acquire most of market share in silicon wafer market by their stable quality and famous brand. A company might continually grow by offering multiple semiconductor materials and co-investing together with Chinese suppliers. Multiple semiconductor materials could get more opportunities on sales side. To co-investing together with Chinese suppliers could get stable relationships on supply side.