The invention discloses a medium-voltage trailing cable applied to an intelligent energy tunneling machine and a production process. The medium-voltage trailing cable includes a cable core, a side gap filler, a second semiconducting nylon band, a fiber-braided reinforcing layer and a sheath which are distributed sequentially from inside to outside; the cable core comprises three power cable cores and three neutral cable cores; the three neutral cable cores are arranged between every two power core cores and tangent to the power cable cores; gaps among the power cable cores, the neutral cable cores and the second semiconducting nylon band are filled with the side gap filler; and the neutral cable core includes a copper foil wire stranded conductor, neutral cable core copper conductors and a second semiconducting shielding layer which are distributed sequentially from inside to outside. According to the medium-voltage trailing cable applied to the intelligent energy tunneling machine and the production process of the invention, the copper foil wire stranded conductors are added into the neutral cable core copper conductors, KEVLAR fiber lines in the copper foil wires have high strength, high softness, low creep and the like, and therefore, the tensile strength of the neutral cable cores can be effectively improved.