The invention relates to a 400Hz in-parallel balanced structure cable for ships and a manufacture method of the 400Hz in-parallel balanced structure cable. The center of a neutral wire conductor is provided with a steel wire stiffening member, wherein a neutral wire insulating layer extrudes outside the steel wire stiffening member; the periphery of a neutral insulated wire core is evenly distributed with six
phase line insulated wire cores which are completely the same as one another and are sequentially tangent with one another, the two
phase line insulated wire cores which are centro-symmetric with each other are taken as a mutual in-parallel set, gaps which are far away from the neutral insulated wire core among the two adjoining
phase line insulated wire cores are respectively embedded with a control wire
core set, and each control wire
core set comprises three control wire cores which are twisted with one another and a
copper braid shielding layer coated outside the control wire cores; and each control wire
core set and each phase line insulated wire core are respectively and internally tangent with the same circle and are jointly twisted with the neutral insulated wire cores into a cable core, the periphery of the cable core is wound with a
glass fiber tape, and the periphery of the
glass fiber tape is extruded with an internal protecting bush and an external protecting bush. The cable simultaneously has the functions of a
power cable and a control cable, and is large in
carrying capacity, balanced in structure, and small in outer
diameter and bending
radius.