PURPOSE : A method for assisting a secured loan of real estate lease money using the internet is provided to supply a secured loan of real estate lease money and introduce a lease deposit compensation insurance, thereby largely stabilizing a least system. CONSTITUTION : If user computers(10) access a transaction assisting server(30), the transaction assisting server checks whether the user computers are members or not. The transaction assisting server displays a main screen about a secured loan of real estate lease money. The transaction assisting server requests credit conditions of the user computers which input secured loans of real estate lease money to a credit assessment institution server(40). The transaction assisting server sets a secured loan condition based on a real transaction price if there is no problem in the secured loan of real estate lease money.