Asymmetry in the parties of the transaction leads to uncertainty in the transaction. Trust problem has been one of
the bottlenecks restricting the development of e-commerce. For e-commerce product reviews issues,comment trust recommendation model was proposed based on comment credibility degree and user similarity, which combined with social networking trust mechanism and collaborative filtering to offer users with a more personalized trust recommendations. The experimental results demonstrate that the model can effectively improve the recommendation accuracy and improve cold startup problems in collaborative filtering.