Digitized warning system of nuclear power plant and method thereof

The invention relates to a digitized warning system of a nuclear power plant and a method thereof. The digitized warning system of the nuclear power plant of the invention comprises a first detection unit, a second detection unit, a manual signal logical process unit, an automatic signal logical process unit, a signal judgment unit, a logical comprehensive process unit, a breakdown warning unit and a failure warning unit. The digitized warning method of the nuclear power plant comprises the step of judging whether a manual process signal is received or not when an automatic process signal is received, if so, a failure warning is produced, or a breakdown warning is produced. The invention solves the disadvantage that the digitized control system of the nuclear power plant can not trigger the warning of the auxiliary equipment, and can reasonably and completely trigger the warning to make the alarming information coordinate with the actual information.