In the view of great dangerous of aviation servicing error,this paper firstly put forward the definition and characteristics of the aviation servicing error.From the relationship of hardware,software,environment and human,several modes of the aviation servicing error are deeply analysed and studied especially the most active and extrusive human error.According to actual application,it pointed out the ways and measures of preventing all these error modes,which are propitious to strengthen the aviation servicing work,to enhance the efficiency and quality of servicing work,to guarantee flight security.