Abstract: The complex building environment of the city limits the movement of vehicles and the free propagation of wireless signals. The wireless ad hoc network presents the characteristics of unstable communication links and intermittent connectivity of topology. The traditional wireless ad hoc network routing cannot meet the communication needs of vehicle ad hoc networks (VANETs). The virtual registration of VANETs provides the possibility of Sybil attack, and the routing path is no longer reliable. To address these problems, a trusted routing protocol based on communication link awareness is proposed. The communication link state was quantitatively evaluated, and the trust modeling of node behavior was carried out. The link quality and node trust value were used as the new routing decision basis, which alleviated the negative effects caused by routing holes and malicious evaluation. Simulation results show that the proposed method can effectively improve packet delivery ratio and reduce packet transmission delay with a small increase in communication overhead.