As the multi-mode satellite navigation is widely used, the probability of multi-satellite faults, including abrupt faults and slowly growing error, grows as the number of satellites increases. The most widely used integrity monitoring methods at present have difficulty in multi-mode satellite faults identification, especially in slowly growing error detection. Aiming at this, an inertial aided fault satellite identification method based on inconsistency of the measurements is proposed. Simulation results show that this method can simply identify all the fault satellites at one time, and also effective for slowly growing error. So this method for fault satellite identification has high practical value.