The economic gap between ethnic minority’s regions in the west and urban regions in the east seems to be settled, only if statistical indices such as gross regional domestic product and GDP per capita are checked. Positive outlook on the growth of ethnic minority’s regions may be reasonably adopted if we check development indices such as growing number of students, medical personnel, and recovery beds in hospitals and clinics. Upon this point, sustainability of growth of ethnic minority’s regions is checked. Whether their economy is well managed is also checked. It, however, is revealed that they lag behind urban regions in the east in economic operation. Their economy is based on low total factor productivity and operational inefficiency. They, ostensibly, got economic growth and technological progress in economic operation, and they may be believed to be able to get sustainable growth. Their achievement that comes from input accumulation is weak guaranty for the region’s long term sustainable growth. Strong economic fundamental, such as operational efficiency, that is seen in urban region is needed for their sustainable growth.