The invention discloses an equipment wear abnormity diagnosis method, system and device and relates to the technical field related to wear detection. The method comprises steps that according to an equipment operation time sequence diagram, particle data of an air flow field of present motion equipment parts is correspondingly acquired; according to the particle data, an equipment part which generates abnormality and corresponds to the air flow field is determined; for the abnormal equipment part, sound or vibration data is acquired, and the sound or vibration data and the particle data are fused to acquire composition relationships between the sound or vibration data and the particle data under the same time standards; the specific wear generation position or action is determined according to the composition relationships between the sound or vibration data and the particle data. The method is advantaged in that the abnormal wear position or action of a motion mechanism of the equipment can be accurately acquired.