Disclosed are a nuclear power plant digital auxiliary control panel system and design method, and a control system. The nuclear power plant digital auxiliary control panel system comprises a list establishment module (100) for acquiring a nuclear power plant running standard and historical operation running data and determining the minimum configuration function list according to the power plant running standard and the historical operation running data, and a design module (200) for classifying the minimum configuration function list and designing the minimum control panel system according to classifications. When a main digital human-machine interface fails, the monitoring and control of a nuclear power station is effectively completed by means of the provided digital auxiliary control panel system based on the minimum configuration, thereby satisfying the minimum collection required for safe running of the nuclear power station and saving on costs to the greatest extent, so that the safety and running of the nuclear power station are effectively ensured.