The invention discloses an automatic train fault information display method. The automatic train fault information display method comprises the following steps: (1) pre-storing information on fault types and fault description of the fault types of all target devices requiring fault information display in a one-to-one corresponding manner, and establishing a fault display information corresponding table; and (2) receiving failure data of all the target devices in a train in real time, analyzing the failure data to obtain current fault types, and obtaining the information on fault description of the current fault types according to the fault display information corresponding table for display. The specific implementation method of the automatic train fault information display method disclosed by the invention is simple, can automatically display fault information and has the advantages of high fault information display efficiency and accuracy rate.