The　potential　of　using　the　information　of　uterine　contractions　(UCs)　derived　from　electrohysterogram　(EHG)　has　been　recognized　in　early　detection　of　preterm　delivery.　A　better　understanding　of　the　conduction　property　of　EHG　is　clinically　useful　for　developing　advanced　methods　to　achieve　a　reliable　prediction　of　preterm　delivery.　In　this　paper,　a　method　to　analyze　the　destination　of　EHG　propagation　has　been　proposed　via　the　estimation　of　directed　information　(DI)　between　each　pair　of　neighboring　channels　with　a　novel　propagation　terminal　zone　(PTZ)　identification　algorithm.　The　proposed　method　was　applied　to　experimental　data　from　the　Icelandic　16-electrode　EHG　database.　The　results　demonstrated　that　for　more　than　81.8%　participants,　the　PTZ　was　identified　along　the　medial　axis　of　uterus,　among　which　more　than　half　have　their　PTZ　determined　in　the　center　between　the　uterine　fundus　and　public　symphysis,　which　indicated　a　great　probability　of　propagation　of　EHG　signals　towards　the　center　of　uterus　plane.