Monitoring method and system for preventing grounding wire from being hung mistakenly in overhead line system maintenance operation

The invention discloses a monitoring method and system for preventing a grounding wire from being hung mistakenly in overhead line system maintenance operation, and the method comprises the steps: collecting the live-line state of a hanging line and a first position relation between a first grounding wire and the hanging line, and obtaining the first position coordinates of the grounding wire; an image used for representing the first grounding wire is collected, and a second position relation between the first grounding wire and the hitching line is obtained; based on the first position relation and the second position relation, the hitching condition of the first grounding wire and the hitching line is judged, and according to a first judgment result, a second position coordinate of the first grounding wire is collected; according to the first position coordinate and the second position coordinate, the separation condition of the first grounding wire and the hitching circuit is judged, and according to a sec