Hippocampus　is　heterogeneous　and　can　be　divided　into　subregions　with　different　functions,　but　the　connectivity　specificities　of　the　hippocampal　subregional　structural　networks　are　poorly　known.　Hence,　in　this　study,　we　investigated　the　connectivity　of　hippocampal　subregions　at　the　network　level.　Then,　we　analyzed　the　changes　of　network　attribute　between　normal　group　and　epileptic　group.　The　results　indicate　that　compared　with　the　normal　group,　the　nodes　of　the　epileptic　group　were　reorganized,　and　the　hippocampal　subregional　network　tended　to　be　modularized.　In　addition,　the　correlation　matrix　and　p-value　matrix　after　correction　by　FDR　between　the　two　groups　also　showed　significant　differences.　The　connection　matrix　of　epileptic　group　shows　a　tendency　of　modularization.　This　is　consistent　with　the　results　of　BC.　These　findings　provide　more　comprehensive　insights　for　future　research　into　the　epilepsy.