Abstract: A method, a server and a system for vehicle diagnosis are provided. The method for vehicle diagnosis comprises: a diagnosis server remotely receiving a fault code sent by a vehicle-side terminal and recording a sending device identifier; analyzing the received fault code to obtain a fault diagnosis result; pushing the fault diagnosis result to a corresponding vehicle owner according to the sending device identifier. By adopting the above technical solution, the vehicle owner can know fault situation of the vehicle in time without moving the vehicle to a certain maintenance site, and further decide whether to make a repair or maintenance according to the obtained fault situation, which not only reduces the unnecessary time waste but also effectively reduces security hidden trouble and reduces accident occurrence probability.