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Fragmented files restoration has been a topic in many fields such as historical document restoration,judicature evidence restoration and so on.In this paper we built three kinds of fragment correlation model in order to complete the fragmented files restoration without geometrical information.By combining the advantages of each model, we designed and implemented the fragmented files restoration algorithm based on comprehensive correlation model.At the same time, we proposed two evaluation criteria, which are used for guidance of restoration.The experiment results showed that the algorithm could reduce the times of artificial intervention significantly as well as complete the restoration correctly and effectively.