The present invention discloses a method for positioning UE, wherein the method comprises the following steps: measuring the angle-of-arrival AOA of UE signal and time delay of UE signal to the base station for a plurality of times; calculating the plurality of AOAs obtained by measuring for obtaining the intermediate value of AOA; calculating the plurality of time delays obtained by measuring for obtaining the intermediate value of time delay; estimating the non-perpendicular factor of environment of UE; and computing the position of UE according to the intermediate value of AOA, the intermediate value of time delay, the non-perpendicular factor and the position information of base station comprising the UE. The estimated distance is modified when the distance between UE and base station is estimated in the invention, namely the time delay of UE signal to the base station is modified thereby reducing the time delay of UE signal to the base station and the deviation to the real value. When the UE is in the non-perpendicular environment, the technical plan provided by the invention can effectively increase the positioning precision to UE. The invention also discloses a device for positioning UE.