Abstract:Intellectual capital has a significant positive promoting for high-tech enterprise’s innovation performance, it’s necessary factors in increase survival probability and maintain competitive advantage, therefore, The high-tech enterprise should pay attention to Intellectual capital and manage the capital. In view of the intellectual capital evaluation index of fuzziness and subjective uncertainty, we use the evaluating method of unascertained measure. Firstly, building high-tech enterprise intellectual capital evaluation index system by literature method. Secondly, use the unascertained measure evaluate the high-tech enterprise S, the analysis finds that the relational capital is the weakness especially for customer and marketing. Advise: strengthen customer demand analysis, improve customer satisfaction; Strengthen the marketing channel conflict management, choosing appropriate marketing channel middlemen access rules and norms. Finally, through example analysis found that high-tech enterprise often excessive emphasis on innovation management, lack of cognitive relationship capital management.