The utility model discloses a join in marriage interim cross arm fixer of net live working, its technical scheme is: the both ends of adopting two cardboard clamping cross arms are fixed two cardboards in the backup pad, and connecting plate welding is passed through on the staple bolt to the backup pad, and on the fixed online pole of staple bolt, the staple bolt passes through the cardboard andsupports the cross arm, and the staple bolt adopts the two -half structure structure and comprises two arc splint, and the one end rotary type of two arc splint is connected, and the other end passesthrough connecting bolt and connects. Set up the adjusting plate in the inboard of arc splint, the antiskid just adapts to the line pole of different diameters, and the thickness of adjusting plate isthickeied to the other end by one end gradually. The utility model discloses a with cross arm fixed portion and line pole fixed portion welding integral type structure together, its light flexibility, single can the operation, need not electrician's cooperation on ground electrician, the pole, therefore operator person reduces by a wide margin, reduce and express one's appreciation power costs and intensity of labour.