Disclosed is a method for determining a location of a UE by means of AGPS information. The method includes generating by an SLC a pseudo UE ID according to a request for location information of the UE, the pseudo UE ID being used for maintaining security in communication with an SPC, requesting AGPS information for the UE, the location information of which has been requested, to the SPC by means of the pseudo UE ID, and receiving the AGPS information, transferring the received AGPS information to the UE, and receiving GPS signal measurement values using the AGPS information from the UE, requesting a location calculation of the UE for the GPS signal measurement values to the SPC by means of the pseudo UE ID, and receiving calculated location values, and providing the location information of the UE by means of the received location values of the UE.