According to one embodiment of the present invention, a vehicle lower arm to be used for a vehicle suspension device is provided. A vehicle lower arm according to one embodiment of the present invention can comprise: a lower arm body part for forming the basic body of the vehicle lower arm; and a lower arm mounting part formed on one end of the lower arm body part so as to be used in the connecting of the vehicle lower arm to a wheel or a car body side of a vehicle. According to one embodiment of the present invention, the lower arm body part comprises: a lower arm base plate positioned in the center part thereof; and a lower arm flange part formed by bending an end portion of the lower arm base plate, wherein a portion or the all of the lower arm flange part can be formed so as to have a tubular cross sectional structure having a space formed in the center part thereof. According to one embodiment of the present invention, the tubular cross sectional structure formed in the lower arm flange part can be formed by bending the end portion of the lower arm base plate, and then arranging an end thereof to be adjacent to the other part of the lower arm base plate or the lower arm flange part.