The invention relates to a reliability evaluation method and system of an energy hub model. The method comprises steps that a production factor of each type of energy converters is calculated according to the failure rate and the repair rate of each energy converter in the energy hub model; according to the production factor, the energy supply capacity of an energy hub is acquired; reliability ofthe energy hub is acquired in combination with the energy supply capacity of the energy hub, energy demands of energy consumers and the production factor. The method is advantaged in that vacancy of reliability evaluation of the energy hub model is filled.