Abstract: With the large-scale development of offshore wind power, the harmonic problem caused by the integration of offshore wind power has become more and more prominent, so the modeling and analysis are urgently needed. The modeling of submarine cables in the harmonic frequency range is one of the important work to tackle this problem. The calculation method for electrical parameters of submarine cable in the harmonic frequency range is studied, which provides a basis for the modeling of the submarine cable. First, the definition of electrical parameters of the cable is given, and then the calculation process and formulae for the electrical parameters of the submarine cable are summarized. The applicability of the calculation formulae is also demonstrated.Finally, the electrical parameters of three types of typical submarine cables are calculated. Results show that both the positive sequence parameters and the zero sequence parameters of the cable will change greatly with the frequency, and the characteristics of the electrical parameters of the cable changing with frequency must be considered when performing harmonic analysis.