Blocking net support of power transmission line

The utility model relates to the technical field of power transmission line operation, in particular to a power transmission line blocking net support which comprises a bearing plate and a plurality of supporting stand columns used for supporting the bearing plate, the bearing plate comprises a fixing plate and a telescopic plate connected with the fixing plate in a sliding mode, and the supporting stand columns comprise a first stand column and a second stand column. The end, away from the telescopic plate, of the fixing plate is connected with the upper end of the first stand column, the end, away from the fixing plate, of the telescopic plate is connected with the upper end of the second stand column, the first stand column comprises a first telescopic column and a first sleeve column which are sequentially arranged from top to bottom, and the first telescopic column is sleeved with the sleeve column which is connected with the first telescopic column in a sliding mode. The second stand column comprises a