Abnormal root cause positioning method and device for nuclear power plant, electronic equipment and medium

The invention provides an abnormal root cause positioning method and device for a nuclear power plant, electronic equipment and a medium. According to the specific scheme, in response to a fault alarm of a nuclear power plant unit, to-be-processed operation data of the nuclear power plant unit is obtained, to-be-processed data features are extracted from the to-be-processed operation data, and then the to-be-processed data features are input into a target abnormal root cause positioning model; the root cause positioning information is used for carrying out abnormal root cause positioning on the nuclear power plant unit, so that the target abnormal root cause positioning model is combined to determine the root cause positioning information of the nuclear power plant unit, the root cause positioning information is accurately determined, and the target abnormal root cause positioning accuracy is improved. Therefore, the fault root cause of the nuclear power plant unit can be quickly positioned based on the root