PURPOSE : A system and a method for cooperatively investing a real estate through auction are provided to enable a collector to collect a plurality of small money investors to cooperatively participate in court auction, thereby enabling general small money investors to easily participate in real estate auction.CONSTITUTION : A terminal communication module(310) registers a recruitment condition and an investment condition. A processor(340) matches the recruitment condition with the investment condition. A display module(360) displays a matching result. A court communication module(330) bids real estate auction.COPYRIGHT KIPO 2010