Aiming at the present problem that the trust information was not sufficient when processing the trust com-putation in trust link management

a recommendation based trust chain management model（RTCM） was presented.With the building of the trusted network

considering the factors such as the transition fading

time decay

and weight of the path and so on

the model decreased the time complexity in the search of the trusted paths.Used weighted closeness to combine the recommendation paths

fully considered the trust-related information

and the policy to in-hibit the malicious recommendation was given.Finally

the experiment has shown that this model has improved the trustworthiness of network.