A wiper apparatus for a vehicle, including: a frame to receive a wiper driving motor; a supporter formed to protrude from the frame toward an auto body panel; and a jointing member that combines with the supporter and that joins to the auto body panel, wherein the jointing member forms an ‘L’ shape in a longitudinal cross-section including a direction in which the jointing member is finally assembled into the auto body panel, and includes a first pressing part for contacting and supporting one side of the auto body panel; a second pressing part for contacting and supporting the other side of the auto body panel; and a protruding stopper for preventing the auto body panel from rotating in a direction parallel to the auto body panel.