The invention relates to a relay protection debugging method, which comprises the following debugging steps: s1, dividing the power transmission line into a plurality of grid units and marking corresponding numbers, wherein the grid units are respectively provided with. The invention relates to a relay protection debugging method, which comprises the following debugging steps: s1, dividing the power transmission line into a plurality of grid units and marking corresponding numbers, wherein the grid units are respectively provided with. Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed. ) Current Assignee (The listed assignees may be inaccurate. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This problem is. The invention discloses a relay protection debugging system which comprises a man-machine interaction module, an SCD analysis module, a communication locking module, a configuration checking module, a 1 st signal interface module for accessing and protecting an MMS network port, a 2 nd signal.