This research utilises the non-parametric frontier approach, Data Envelopment Analysis (DEA) to analyze technical efficiency of the regional development banks (BPD). The data was during 2006-2007 covering 26 BPD in Indonesia. The result of study indicated that the regional of development bank did not achieve technical efficiency at the level of maximum (100%). On avarege, the big-asset of BPD are found to be more efficient than the middle and small asset. The study has important implications such as guiding the BPD policy regarding merger and bank intermediary. Since the study pinpoints the sources of inefficiency , it would also help banks with strategic plannin