The present invention relates to a system and a method for a real estate loan using internet banking. The system and the method for a real estate loan using internet banking enable a customer to fill an electronic document including a mandatory consent form, an agreement, a setting document, a proxy statement, and a financial instrument which are necessary for a financial product purchase and a real estate secured loan through the internet banking while proceeding with the loan; immediately notify the filled document to a corresponding customer after an authentication; and process the financial product purchase and the real estate secured loan when completing the authentication which confirms the received corresponding contents before a final selection of the financial product purchase and the real estate secured loan.(305) Connect an internet banking by using the wired/wireless terminal of a customer(310) Input information according to a real estate loan by the connected internet banking(315) Perform a qualification preceding examination by inputted customer information and secured product(320) Perform a KB market price search, a target object right investigation, and a valid mortgage price production pre-right investigation after confirming a load qualification object and a qualification(325) Loan consultation/application loan condition (income and liability) (DTL/LTV), other conditions(330) Site right investigation infringement, a rental investigation, evidences. and authenticity(335) Convert an approval result investigation and a notification approval result according to the confirmation of the result, check acceptance data, and prepare an LTV, a DTI, and an income evidence document(340) Notify an acceptance confirmation to a customer according to loans after confirming an agreement, a setting document, an SMS, and an e-mail(345) Perform a post management on a loan, an electronic registration, and a cost estimation(AA) Start(BB) EndCOPYRIGHT KIPO 2014