An electronic component mounting device comprising: a rotary head, in which multiple nozzle holders are disposed on a circumference centered on an axis, and which is configured to pivot about the axis; a suction nozzle, being held by the nozzle holder, which is configured to pick up a component; a lifting and lowering section configured to lift and lower the nozzle holder at a lifting and lowering position on the circumference for picking up or mounting the component with the suction nozzle; an imaging section configured to image the suction nozzle at a pre-imaging position and a post-imaging position on the circumference of the lifting and lowering position; and a control section configured to perform control based on job data in which an order of control steps is predetermined, wherein the control steps include at least one of a lifting and lowering process executed with the lifting and lowering section, a pre-imaging process in which the suction nozzle is imaged by the imaging section at the pre-imaging position or the post-imaging position before execution of the lifting and lowering process, and a post-imaging process in which the suction nozzle is imaged by the imaging section at the pre-imaging position or the post-imaging position after execution of the lifting and lowering process, characterized in that in a case where a lifting and lowering order which is an order of the nozzle holder serving as a target of the lifting and lowering process in the job data is not an arrangement order on the circumference, the control section is configured to execute the post-imaging process targeting the nozzle holder and the lifting and lowering process of the n-th nozzle holder of which the lifting and lowering order is n, in the same control step, in a case where the nozzle holder of which the lifting and lowering order is n-1 or earlier than the n-th is positioned at the pre-imaging position or the post-imaging position, when the nth nozzle holder in the lifting and lowering order is positioned at the lifting and lowering position, and the control section is configured to execute the pre-imaging process targeting the nozzle holder and the lifting and lowering process of the n-th nozzle holder in the same control step, in a case where the nozzle holder of which the lifting and lowering order of the nozzle holder is later than the n-th is positioned at the pre-imaging position or the post-imaging position, when the n-th nozzle holder in the lifting and lowering order is positioned at the lifting and lowering position, wherein the pre-imaging position (AP1, AP2) is a stopping position one pitch before the lifting and lowering position (HP1, HP2), and the post-imaging position (BP1, BP2) is a stopping position one pitch after the lifting and lowering position (HP1, HP2). a rotary head, in which multiple nozzle holders are disposed on a circumference centered on an axis, and which is configured to pivot about the axis; a suction nozzle, being held by the nozzle holder, which is configured to pick up a component; a lifting and lowering section configured to lift and lower the nozzle holder at a lifting and lowering position on the circumference for picking up or mounting the component with the suction nozzle; an imaging section configured to image the suction nozzle at a pre-imaging position and a post-imaging position on the circumference of the lifting and lowering position; and a control section configured to perform control based on job data in which an order of control steps is predetermined, wherein the control steps include at least one of a lifting and lowering process executed with the lifting and lowering section, a pre-imaging process in which the suction nozzle is imaged by the imaging section at the pre-imaging position or the post-imaging position before execution of the lifting and lowering process, and a post-imaging process in which the suction nozzle is imaged by the imaging section at the pre-imaging position or the post-imaging position after execution of the lifting and lowering process, characterized in that in a case where a lifting and lowering order which is an order of the nozzle holder serving as a target of the lifting and lowering process in the job data is not an arrangement order on the circumference, the control section is configured to execute the post-imaging process targeting the nozzle holder and the lifting and lowering process of the n-th nozzle holder of which the lifting and lowering order is n, in the same control step, in a case where the nozzle holder of which the lifting and lowering order is n-1 or earlier than the n-th is positioned at the pre-imaging position or the post-imaging position, when the nth nozzle holder in the lifting and lowering order is positioned at the lifting and lowering position, and the control section is configured to execute the pre-imaging process targeting the nozzle holder and the lifting and lowering process of the n-th nozzle holder in the same control step, in a case where the nozzle holder of which the lifting and lowering order of the nozzle holder is later than the n-th is positioned at the pre-imaging position or the post-imaging position, when the n-th nozzle holder in the lifting and lowering order is positioned at the lifting and lowering position, wherein the pre-imaging position (AP1, AP2) is a stopping position one pitch before the lifting and lowering position (HP1, HP2), and the post-imaging position (BP1, BP2) is a stopping position one pitch after the lifting and lowering position (HP1, HP2).