Wind power submarine cable is the key power transmission equipment in floating wind power system. It is easy to be damaged by large tensile load in complex marine environment

causing the whole wind power system not operate normally. In order to ensure the normal operation of wind power submarine cable system

it is necessary to study the tensile mechanical properties of wind power submarine cable. Due to the complexity of wind power submarine cable structure

most of the relevant research is presently based on numerical simulation methods. However

different numerical simulation methods have an obvious impact on the analysis results of the tensile mechanical properties. First

the theoretical calculation method of tensile stiffness of mechanical model of wind power submarine cable is given in this paper. Then

through reasonable simplification

two different numerical modeling methods based on beam element and solid element are constructed to solve the tensile mechanical properties of the wind power submarine cable. Finally

the theoretical modeling method is compared with the two different numerical modeling methods to study the sensitivity of different numerical modeling methods on the tensile mechanical properties of wind power submarine cables so to provide some reference for practical engineering.