The protective relaying setting calculation has encountered several obstacles, such as high calculation complexity, excessive calculation procedures and low efficiency due to the growing range of network scale and the increasingly complex operation mode when splicing graphics of different areas. This paper makes an intensive research on the integrated protective relaying graphic mosaic, and promotes a Mean Shift algorithm and hierarchical clustering algorithm based MSHC intelligent partition method for integrated protective relaying graphic. The optimal station partition could be accomplished following these three principles:the cut set is the smallest; the branch with mutual inductance is within the same sub-area and the quantity of the station within the sub-area is appropriate. Finally, the effectiveness and rapidity of this method is verified through an actual network.