The altered Indonesian political system and configuration was marked by the shift from centralized administration to the more decentralized one. The establishment of Seluma Regency and Kaur Regency is one of local autonomy implementations based on Act 22/1999 and Government Regulation 129/2000. The Objective research is to describe the expansion process and the background of Seluma Regency and Kaur Regency establishment . This research employed qualitative describe method, the purpose of this research is to know how the process of Seluma Regency and Kaur Regency establishment was, and the background of Seluma Regency and Kaur Regency expansion from South Bengkulu Regency. Comprehensive review was carefully conducted on documents related with the process and background of Seluma Regency and Kaur Regency establishment. Data were came from field observation, interviews, and review the expansion documents. Research showed expansion process of Seluma Regency and Kaur Regency from the Regency Of South Bengkulu into three different regional autonomy. Based more dominated dramatic action inters from political elites local batter than public aspiration, this condition showed territory factor, people’s factor, political factor, economics factor and socio-cultural factor under influenced political elites local inters into the marking public policy of expansion territory South Bengkulu Regency. This conditions showed a problem or a conflict happened into process expansion territory of South Bengkulu Regency after Central Government sign Act 3/2003, The Regency of Seluma and The Regency of Kaur Establishment in The Province of Bengkulu. Research findings suggest that Seluma Regency, Kaur Regency and South Bengkulu Regency needs political stabilities to prepare all of the infrastructure, organization, funding, and other strategic options needed by the new regional autonomy to run administration, accelerate the process of local organization structure suitable to the need of the region, so them could serve the public well, and accelerate the process of asset handover so the new regional autonomy could effectively be functioned. Key words : Expansion Policy, Policy Implementation, and Expansion Background