Data analysis method using the same is disclosure is device. A device data analysis according to one aspect of the present invention, for storing data in an array of search information of real estate database inquiry information of real estate, said information of real estate in time series analysis and by themes associated with operatively according to an analysis of evaluates, searching real estate information and relates to a real estate contract engagement associated information is a data analysis unit, and said data analysis unit analyzed by data of theme according to visualization using the visualization includes a manager.