Coaxial communication cable with high electromagnetic shielding effectiveness and preparation method thereof

The invention discloses a coaxial communication cable with high electromagnetic shielding effectiveness and a preparation method of the coaxial communication cable. The coaxial communication cable comprises an inner conductor, an insulating layer, an outer conductor layer and an outer protective sleeve which are sequentially arranged from inside to outside. The insulating layer is wrapped on the inner conductor; the outer conductor layer is wrapped on the insulating layer; the outer protective sleeve is wrapped on the outer conductor layer; the outer conductor layer is of an electric shielding-magnetic shielding-electric shielding-magnetic shielding-electric shielding multi-layer composite structure composed of a metal composite belt, a high-permeability metal belt and a braid layer. The coaxial communication cable with high electromagnetic shielding effectiveness provided by the invention has excellent electromagnetic shielding effectiveness, and is suitable for being used in a complex interference environme