Umbilical cable for ocean engineering

The invention, which belongs to the cable technology field, relates to an umbilical cable for ocean engineering. The umbilical cable comprises four electrified cores and three functional cores. The structure of each of the electrified cores is as follows: a polypropylene insulation layer and a metal shielding layer are successively coated outside soft copper conductors. Each of the functional cores includes two soft copper conductors; polypropylene insulation layers are coated outside the soft copper conductors; and a twisted pair group protection layer and a metal shielding layer are successively coated outside the two soft copper conductors coated with the polypropylene insulation layers. A kevlar fiber braiding layer is braided at the outboard of the whole body of the electrified cores and the functional cores; a polypropylene sheath and a semiconductive general shielding layer are successively coated at the outboard of the kevlar fiber braiding layer; and an inlayer steel wire armored sheath and an outer