The purpose of this paper is to propose a new transfer alignment approach based on the inertial network. The inertial network is described, and the measurement models are built firstly. The inertial device fusion and fault detection algorithm are analyzed with the redundancy technology of devices in the inertial network to enhance the reliability and security of the system. Then the improved model of the system is built and the transfer alignment algorithm method for the inertial network is proposed. Several experiments have been performed to validate the performance of the proposed transfer alignment scheme. Different simulation experiments and real ground vehicle test results showed that the transfer alignment with the inertial network can obtain the better precision result and shorter convergence time, which can also improve the fault detection and recognition ability of the system. A transfer alignment method based on the inertial network is proposed to improve the fault tolerance ability and enhance the accuracy of the system. The primary advantage is that each node is able to communicate with other nodes, which allows for sharing information in the inertial network.