PURPOSE : A device for offering an integrated real estate form service using the network is provided to enable a realtor computer to complete generation of a needed form file with one-click by storing data of each item included to a form file to a database and extracting item data needed for making the form from the database.CONSTITUTION : A real estate contract processor(11) includes a contract generating module generating a real estate contract file based on each item data received from the realtor computer, a receipt generating module generating various kinds of receipt files related to a real estate contract, and a contract list managing module managing a contract list of each realtor office. A database(18) stores each item data received from the realtor computer. A real estate register(13) includes an official contract generating module, a registration application generating module, a confirmation document generating module, and a credit registration agent module. A real estate tax processor(15) includes a tax form generating module and a tax rate calculating module.? KIPO 2006