Method and system for searching mobile application using human activity knowledge database

PURPOSE: A method and a system for searching for a mobile application through activity knowledge database of a person are provided to reduce un-uniformity of words between a user query and a mobile application by using the activity knowledge database. CONSTITUTION: A user interface unit(110) supplies a query input environment to a user. The user interface unit displays a mobile application search result related to a user query. A mobile application search unit(150) receives the user query from the user interface unit. The mobile application search unit searches for the mobile application related to the user query by using activity knowledge database(130).