The invention discloses a
plant protection unmanned aerial vehicle with detachable levelness-calibration-free vehicle arms. The
plant protection unmanned aerial vehicle comprises a power distributionplate, a vehicle body
assembly, foot stools, a rear section
assembly, a battery compartment, vehicle arm assemblies, a
power component, a water tank, a spray component and a circuit
assembly appearance shell; the outer surface of the vehicle body assembly is provided with the four vehicle arm assemblies, and the four vehicle arm assemblies are annularly and uniformly arranged on the outer surfaceof the vehicle body assembly. Some positioning parts are used on the
plant protection unmanned aerial vehicle, the calibration work of disassembled vehicle arms is reduced when the unmanned aerial vehicle is assembled, the
transport volume of the unmanned aerial vehicle is reduced, meanwhile, up and down symmetry is achieved, the complexity of the assembly process is simplified, an assembler is easy to get started, and work efficiency is greatly improved; a center plate is common to a front plate, side plates, a rear plate, carbon tube root connecting pieces, a center upper plate and a centerlower plate to jointly form a stable shell structure, the structure is simple, and the strength and stability of an entire center plate frame can be increased.