The present invention belongs to the technical field of electric lifting 
machine and live line operation and particularly relates to a 
transmission line unmanned aerial vehicle and electric lifting device combined live working method. An unmanned aerial vehicle is used to suspend an insulation 
rope to a conductive wire, a semi-static 
rope is dragged through the insulation 
rope to suspend the semi-static rope to the conductive wire, an 
equipotential electrician operates a small fly people 
machine to enter a strong 
electric field and reach a live line to carry out defective 
elimination operation. The method comprises the steps of setting the unmanned aerial vehicle and the insulation rope, checking the unmanned aerial vehicle, throwing the rope through the unmanned aerial vehicle, dragging the semi-static rope, installing the semi-static rope, installing the small fly people 
machine and a buffer self-locking device, carrying out 
equipotential electrician checking and connection, lifting the 
equipotential electrician by the small fly people machine and completing potential transfer, hanging a hard insulation ladder head and carrying out translocation, entering into equipotential to hang an extension rope to eliminate a defect, and exiting the equipotential. An operator is lifting by using the small fly people machine to reach a live line defective position, climbing an iron 
tower and a soft ladder to enter and leave the strong 
electric field is not needed, the 
safety risk is small, the working efficiency is high, and the operation is simple.