In order to ensure that the mine hoist hydraulic station effectively performs secondary braking, performance of the accumulator is regarded as a research target. In detail, the hydraulic station working principle of secondary braking is introduced. A mathematical model of the accumulator was established and the parameters affecting the performance of the accumulator were theoretically analyzed. The hydraulic system simulation model was built by the AMESim software. For the constant pressure system and the variable pressure system, performance of the accumulator was analyzed when the accumulator was relieved and charged under the different pre-charge pressure of an accumulator and different throttle opening of a throttle valve. The simulation results show that the pre-charge pressure of the accumulator and the throttle opening of the throttle valve can be adjusted to optimize the performance of the accumulator and to improve the reliability of the secondary brake of the hydraulic station.