Insulator cleaning overhead working truck

The invention relates to an overhead working truck for cleaning insulators. The cleaning machine comprises a chassis assembly and an auxiliary frame assembly, the auxiliary frame assembly is installed on the chassis assembly, the cleaning machine is structurally characterized by further comprising a rotary table assembly, a folding arm assembly, a straight extending arm assembly and a cleaning device, the rotary table assembly is installed on the auxiliary frame assembly, the folding arm assembly is installed on the rotary table assembly, and the straight extending arm assembly is installed on the folding arm assembly. The straight extending arm assembly is installed on the folding arm assembly, and the cleaning device is installed on the straight extending arm assembly. Multi-directional adjustment of the cleaning device can be achieved through cooperation of the rotary table assembly, the folding arm assembly and the straight extending arm assembly so as to achieve all-directional cleaning of insulators, th