Method and system for porviding technology change using of technology life cycle graph

PURPOSE: A technology development providing method using a technology life cycle graph and a system thereof are provided to obtain stages by year and representative items by year to display on the technology life cycle graph. CONSTITUTION: A technology development information DB(Database) building device(200) builds a technology development information DB in which stages by year and representative items by year for each technology are stored to be displayed on a technology development life cycle graph. A technology development providing device(300) acquires stages by year and representative items by year for a specific technology displayed on the technology development life cycle graph. The technology development providing device displays acquired contents on the technology development life cycle graph.