Apparatus and method for estimating location

A device and method for estimating location are disclosed. The device for estimating the location according to the present invention comprises; a setting part which sets a coordinate system according to a location information; a selecting part which selects a target node which is a target of the location estimation based on the connection information between the nodes received from multiple nodes forming a network; and an estimating part which estimates the location information of the target node according to connection relationship of a standard node which knows the target node and the location information. [Reference numerals] (11) Setting part;(12) Selecting part;(13) Estimating part