Working method of post insulator main line jacking tool

The invention provides a working method of a post insulator main line jacking tool, the jacking tool comprises a main line jacking assembly and an included angle holding steel assembly, the included angle holding steel assembly tightly holds an angle steel cross arm, the main line jacking assembly controls the lifting of a main line, the main line jacking assembly comprises a lifting device, a jacking device and a butt joint assembly, the butt joint assembly is connected with an external robot, the external robot drives the butt joint assembly to rotate so as to control lifting of the lifting device and the jacking device, and the butt joint assembly comprises a butt joint disc, an adapter barrel and a transition barrel which are sequentially connected. According to the butt-joint assembly, the angle is conveniently adjusted through the rotating frame, two cross arms are avoided, the scene problem that an angle steel opening faces leftwards and rightwards is solved, the butt-joint assembly is bent downwards t