A suction failure recovering process of a component mounting method includes: executing an imaging process in which an image of a pitch-fed pocket of a carrier tape is obtained; executing a pocket position detection process in which a pocket position is detected; and executing a positional displacement determination process in which it is determined whether the detected pocket position falls into a permissible range or not. When it is determined that the pocket position does not fall into the permissible range, the imaging process, the pocket position detection process and the positional displacement determination process are executed sequentially and repeatedly until the pocket position falls into the permissible range. When it is determined that the pocket position falls into the permissible range, a suction position is corrected based on the pocket position at a time point at which the pocket position falls into the permissible range.