The invention discloses a method and system for reliability evaluation of an AC/DC hybrid distribution network. The method comprises the steps of obtaining a simulation period for evaluating the reliability; obtaining a reliability index of the AC-DC hybrid distribution network in the simulation period based on a pre-established fault mode consequence analysis table and an optimal load shedding model of the AC-DC hybrid distribution network; and obtaining a reliability evaluation result of the AC-DC hybrid distribution network based on the relationship between the reliability index of the AC-DC hybrid distribution network in the simulation period and a threshold value. According to the invention, the fault mode consequence analysis table, the load shedding strategy and the reliability evaluation index in the reliability evaluation all consider the influence caused by direct current transformation, and the method can be directly applied to the reliability evaluation of the AC-DC hybriddistribution network.