Provided are a real estate transaction system and method using real estate trust that are capable of lessening a burden on a residence right holder and investors by securitizing real estate and selling a plurality of divided securities including a security for ownership and a security for investment. A real estate special purpose company buys real estate and divides a right for real estate into a residence right and an investment right that is transacted as an investment security at a real estate security exchange, like normal security, with the residence right and the investment right having different dividend percentages, such that a buyer desiring actual residence resides on the property by paying only a portion of the price of the real estate and a person desiring investment invests in real estate for desired equity.