High-altitude operation blocking device for power distribution tower

The invention relates to the technical field of power equipment, in particular to a power distribution tower aerial work blocking device which comprises at least two blocking sub-devices, and a square blocking net is detachably installed between the two blocking sub-devices. The blocking sub-device comprises a rotating transmission rod, a first mounting sleeve, a rotating limiting rod, a second mounting sleeve, a clamping assembly and a similar triangular blocking net; the rotary transmission rod is rotatably and movably mounted in the first mounting sleeve, and one end of the rotary transmission rod is in transmission connection with the clamping and abutting end of the clamping assembly; the rotating limiting rod is mounted in the second mounting sleeve, and one end of the rotating limiting rod is hinged to the clamping assembly; a triangle-like blocking net is fixedly mounted between the first mounting sleeve and the second mounting sleeve, and the rotating limiting rod can rotate close to or away from the