A label attachment apparatus for attaching a label to a battery case, comprising: a label support on which the label is placed; an alignment check part (301, 302) configured to check whether an alignment state of the label is normal or defective; and a label aligning part configured to align the label when the alignment state determined by the alignment check part (301,302) is defective, wherein the alignment check part (301, 302) consists of: a servo robot configured to move the label support, on which the label is placed, to a corresponding position of the battery, the label being attachable to the battery at the corresponding position of the battery; two sensors (301, 302) configured to sense the alignment state of the label; and an alignment determining part configured to determine, according to a combination of signals detected by the two sensors (301, 302), whether the alignment state is normal or defective, wherein the two sensors (301, 302) comprise: a first sensor disposed to be spaced apart by a preset distance to the left with respect to the servo robot; and a second sensor disposed to be spaced apart a preset distance to the right with respect to the servo robot, wherein the first sensor and the second sensor (301, 302) are disposed side by side on a straight line perpendicular to a moving direction of the servo robot. a label support on which the label is placed; an alignment check part (301, 302) configured to check whether an alignment state of the label is normal or defective; and a label aligning part configured to align the label when the alignment state determined by the alignment check part (301,302) is defective, wherein the alignment check part (301, 302) consists of: a servo robot configured to move the label support, on which the label is placed, to a corresponding position of the battery, the label being attachable to the battery at the corresponding position of the battery; two sensors (301, 302) configured to sense the alignment state of the label; and an alignment determining part configured to determine, according to a combination of signals detected by the two sensors (301, 302), whether the alignment state is normal or defective, wherein the two sensors (301, 302) comprise: a first sensor disposed to be spaced apart by a preset distance to the left with respect to the servo robot; and a second sensor disposed to be spaced apart a preset distance to the right with respect to the servo robot, wherein the first sensor and the second sensor (301, 302) are disposed side by side on a straight line perpendicular to a moving direction of the servo robot. a servo robot configured to move the label support, on which the label is placed, to a corresponding position of the battery, the label being attachable to the battery at the corresponding position of the battery; two sensors (301, 302) configured to sense the alignment state of the label; and an alignment determining part configured to determine, according to a combination of signals detected by the two sensors (301, 302), whether the alignment state is normal or defective, wherein the two sensors (301, 302) comprise: a first sensor disposed to be spaced apart by a preset distance to the left with respect to the servo robot; and a second sensor disposed to be spaced apart a preset distance to the right with respect to the servo robot, wherein the first sensor and the second sensor (301, 302) are disposed side by side on a straight line perpendicular to a moving direction of the servo robot. a first sensor disposed to be spaced apart by a preset distance to the left with respect to the servo robot; and a second sensor disposed to be spaced apart a preset distance to the right with respect to the servo robot, wherein the first sensor and the second sensor (301, 302) are disposed side by side on a straight line perpendicular to a moving direction of the servo robot.