Abstract: In order to establish a mature submarine cable laying system in deep and shallow sea areas, combined with OrcaFlex software, submarine composite cables (hereinafter referred to as submarine cables) laying was analyzed under conditions of water depth at 35 m, top tension at 9.0 kN and bottom tension at 1.9 kN, morphological changes and tension distribution of submarine cables were obtained. Subsequently, laying sensitivity analysis was carried out to determine that cable-laying ship had safe laying operation conditions. Finally, construction technology of submarine cable laying was introduced, and a new submarine cable tail pulling method was proposed, which could provide reference for further oilfield development and submarine cable construction.