The present invention relates to a system for a joint pool service for real estate and a method thereof and, more specifically, to a system for a joint pool service for real estate and a method thereof which pay housing securities issued by a trust company dividing real estate trusted to the trust company by a user into residence shares and non-residence shares for issuing the housing securities to a security account of an owner, provide a joint pool service to aid in purchasing goods or services of a seller by using the corresponding housing securities as standard money, approve a residential right for the real estate of the user by residence shares to secure residential stability, and reduce a burden of money which the user invests on the real estate by the corresponding housing securities to vitalize investment for profit creation and aid in reducing interests for a loan used when purchasing the real estate to increase liquidity of money invested on the real estate.(20) Trust company(30) Real estate assessment agency(40) Joint pool service(50) Service operation company(60) Financial institution(70) Seller(80) Fund manager(90) Investment target company(AA) Residence shares(BB) Trust(C1, C2) Housing securities(DD) Income(EE) Investment · repayment(FF) Housing securities (account)(GG) Cash account(HH) Marketing platformCOPYRIGHT KIPO 2019