Flexible multilayer composite transparent electrode and preparation method thereof

The invention provides a flexible multi-layer composite transparent electrode and a preparation method thereof. The flexible multi-layer composite transparent electrode comprises a flexible supporting layer, a high-conductivity transmission layer and a dielectric protection layer which are stacked in sequence, wherein the flexible supporting layer is made of a high polymer material and is arranged on the bottom layer; the dielectric protection layer is arranged on the top layer by selecting a transparent conductive oxide material; the high-conductivity transmission layer is made of metal and/or carbon materials and is arranged between the flexible supporting layer and the dielectric protection layer. The problems that in the prior art, traditional transparent conductive indium tin oxide (ITO for short) is hard and brittle and can bear very small deformation, metal silver with good conductivity is active, a metal nanowire or a metal grid structure has a large specific surface area, and once the transparent ele