Low-surface resistance flexible insulation material and preparation method thereof

The embodiment of the invention discloses a low-surface resistance flexible insulation material and a preparation method thereof. The low-surface resistance flexible insulation material comprises a low-resistance coating layer, a first insulation paper layer, a first adhesive layer, a thin film layer, a second adhesive layer and a second insulation paper layer which are sequentially arranged fromtop to bottom, wherein the low-resistance coating layer is modified insulation paint internally doped with nanometer active carbon, and the mass content of the nanometer active carbon accounts for 10-25% of the modified insulation paint. By the mode, the insulation material disclosed by the embodiment of the invention is maintained with relatively high insulation performance, meanwhile, the surface resistance of the insulation material is reduced, charges generated by running of the motor can be timely guided out, so that the running safety of the motor is effectively improved, and the servicelifetime of the motor is