PURPOSE : A system, a method, and a server for operating real estate mortgage loan information, and a program recording medium thereof are provided to offer the real estate mortgage loan information to a customer terminal and/or communication tool by generating loan information available to a customer with real estate mortgage based on real estate/customer information inputted from the user terminal.CONSTITUTION : The customer terminal(155) requests the real estate mortgage loan information. An interface(105) provides more than one webpage equipped with a real estate information input area and a customer information input area to the customer terminal, and receives the information through the webpage. An information checker(110) checks the received real estate/customer information. A loan information generating/extracting part(115) generates the real estate mortgage loan information available to the customer and/or extracts the information from a storage medium by using the checked information. A loan information provider(120) provides the generated and/or extracted real estate mortgage loan information to the customer terminal and/or communication tool.? KIPO 2007