Coaxial cable

The utility model discloses a coaxial cable which comprises a cable core, wherein the cable core comprises an inner conductor, and a conductor shielding layer, an insulation layer and an insulation shielding layer which are wrapped outside the inner conductor; and a concentric outer conductor is knitted outside the cable core, an outer conductor shielding layer is extruded outside the concentric outer conductor, and an outer jacket is extruded on the outermost layer. The coaxial cable has higher insulation property, is flexible without gaps, and ensures that the conductors are better in transmission properties under the conditions of high voltage and large current; and because of simple manufacture process, excellent property, wide application range, and longer service life, the coaxial cable is wide in prospect, and is especially suitable for being accepted by a complex comprehensive requirement of a safety intelligent system in a high-voltage electric cabinet.