摘要：AbstractWith the popularization of the concept of plant protection unmanned aerial vehicle (UAV) and the popularity of plant protection UAV, the requirement of flight safety is becoming higher and higher. Because of the difference of operating environments and operation requirements, compared to others areas of UAV, the focus of the research of flight safety of plant protection UAV is also different. Therefore, it is necessary to carry out the research of flight safety of plant protection UAV. This paper first puts forward the relevant models and theoretical formulas for the two kinds of flight safety hazards in plant protection UAV, and provides theoretical support for safety design of plant protection UAV; Then the failure degree of plant protection UAV is further divided; Finally, the existing plant protection UAV faults and flight safety technologies are analyzed at present, which provide reference for development of flight safety of plant protection UAV.
