Underwater connector reliability analysis method and system

The invention relates to an underwater connector reliability analysis method and system, and the method is characterized in that the method comprises the following steps: 1), obtaining an actual three-dimensional model of a to-be-tested underwater connector, and building a finite element simulation model of the to-be-tested underwater connector; 2) acquiring input factors and common faults of the finite element simulation model of the underwater connector to be tested, and determining an easy-to-fail part of the underwater connector to be tested according to the common faults of mechanical equipment similar to the structure of the underwater connector to be tested; 3) determining an input scheme when finite element analysis is carried out on the underwater connector to be tested, and simulating to obtain a stress value and a strain value of the underwater connector to be tested; and 4) respectively establishing reliability models of the easy-to-fail parts of the underwater connector to be tested, sampling and