The invention discloses an aerial lift device with insulating arms for hot-line work of a 66kV transmission line. The aerial lift device with insulating arms is characterized by comprising an aerial lift device body with the insulating arms, a main insulating arm, an auxiliary insulating arm, insulating buckets with a metal lining, a telescopic potential transferring rod and a leakage ampere meter, wherein the insulating buckets with the metal lining is connected with the main insulating arm. According to the technological requirements of the hot-line work of the 66kV transmission line and the characteristics of the operation environment, on the premise that the line basic operation condition is met, the auxiliary devices are reasonably arranged in the limited space with the consideration of the operation safety and the convenient degree of operation personnel. An insulating inner bucket and the metal inner lining are designed, the operation personnel can carry out operation for an upper phase, a middle phase and a lower phase, the shortcoming that the operation personnel only carry out operation on the lower phase is made up, the operation efficiency is increased to a certain extent by designing the potential transferring rod on the insulating buckets, and the safety of the operation personnel is ensured by monitoring leaked current of the whole vehicle.