Fault reason searching method, device and equipment of monitoring system and storage medium

The invention discloses a fault cause searching method and device for a monitoring system, equipment and a storage medium, and belongs to the technical field of artificial intelligence, and the method comprises the steps: obtaining a current value of a leaf element when detecting that a total fault index is abnormal, obtaining a deviation degree set based on the current value, and carrying out the calculation to obtain a potential score of a root cause; based on the potential scores of the root causes, screening to obtain a root cause set, and deleting offspring leaf elements; and if the set condition is met, taking the current root cause set as the fault root cause. According to the method and the device, when the deviation degree of the leaf elements is calculated, the calculation amount is small, the offspring leaf elements are deleted after the candidate root cause elements are screened, the iterative calculation amount of each layer of candidate root cause elements is reduced, the cause searching speed i