The appearance of the World Wide Web (WWW) at the end of the last century led to a rapid growth in the Internet and in the quantity of accessible information for users. The information that has accumulated on WWW represents huge knowledge base that may prove useful for various applications. Now day for everything people depend on the Web. But information retrieved is not guaranteed trustworthy, not always trustable .Truthfinder is used to find trustworthy data using unsupervised approach. It is assumed that a fact provided by more sources is more likely to be correct. The proposed system based on the semi supervised approach. This uses some training data which will help for improving accuracy. Experimental results show that the proposed algorithm is more effective than unsupervised approach and which help to resolve veracity problem