Usually refers to all factors related to people, such as people's vision, hearing, physical health and so on. In the future maintenance work, the failure of a certain part will threaten personal safety and even flight safety, and will also affect the value of personal life.

The human factor in aviation maintenance is mainly to study the influencing factors of the current aviation maintenance personnel's worksheet, optimize the maintenance personnel's work performance, reduce human errors and ensure the safety of civil aviation. In recent years, the research shows that the flight accident rate related to human factors has risen sharply, and reducing or even eliminating the accident rate is the goal that aviation circles all over the world continue to pursue.

The study of human factors involves the knowledge of many disciplines. But its main purpose is to solve aviation accidents and mechanical failures caused by human factors in the real world, so understanding and learning human factors will greatly promote future work.