Rotor bearing system failure perfect information analytical method and apparatus

The invention discloses a rotor bearing system accident comprehensive information analysis method and a device thereof, wherein one section of a rotor is radial and vertically mounted with two sensors X, Y, the axle end of the rotor is axially mounted with a sensor Z, the radial and axial information of the rotor motion transmitted by the sensors are fused to analyze the motion state of the rotor bearing system, the axis center line position and the axis center track of the rotor in the X-Y, Y-Z and Z-X planes of a dimension space are described and displayed visibly to completely and accurately describe the spatial motion information of the rotor, and the information contains the unique diagnosis information as dimension space eccentricity, an attitude angle, a precession direction and vibration vector direction and the like, thereby improving the ability for visually recognizing the accidents of a rotary machine.