Abstract: Ram-compaction piles with composite bearing base is a new type of pile. The characteristic and advantage of Ram-compaction piles with composite bearing base are introduced in the paper from meaning, principle,calculating method, economical technology analysis with engineering example. It has more vertical and level bearing force than other piles. It also has speed construction, high quality, less settlement(and uniformity), advantaged environment. It reduce cost more 20~30% than base disposal and is economical and potential method in soil base. So, it get extensive applying in pile engineering of industrial and civil buildings.