The invention relates to a routing method, specifically to a trustful routing method based on OSPF. The method is used for solving the problem that the safe reliability of a route is bad because a traditional OSPF routing method is short of trustful process and the safety protection and routing information are short of unified management. The method comprises the steps as follows: firstly collecting mutual information of each routing node in a current network topology; calculating a trust estimated value of each routing node according to the collecting information of the step 1; and finally using an OSPF method to perform routing computation based on the routing node whose trust estimated value is more than a preset threshold value, wherein the trust estimated value is obtained by weighting after calculating a direct trust estimated value, an indirect trust estimated value and a trust risk assessment coefficient. The invention provides the trustful routing method T-OSPF based on the OSPF. The method introduces routing node trust assessment in an OSPF routing method to enable the route to be safer so as to ensure the safety of forwarding information while finishing the routing effect and improve routing safe reliability.