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This paper presents a method of related subject of Tibetan web integrating content evaluation and link analysis. The analysis of related subject of Tibetan web is the most important part of the special Tibetan Search. It guide web crawler download pages accurate and efficient. The content evaluation of this method extends the VSM based on keyword, it consider that the keywords in the page have different weight in the different position;Integrating the principles of Page-Rank, link analysis also considers that anchor text and website of the web page relevant with the theme.