In a component-securing device, in a state in which a base member is secured to a component by the engagement of an engagement portion of a clip to a to-be-engaged portion of a joining pin, pushing a pair of pressing portions in an outer peripheral portion of the clip in a direction (see arrow A) of approaching each other makes the outer peripheral portion deform and a pair of joining pin insertion portions move in a direction of moving away from each other, and engagement between the engagement portion of the clip and the to-be-engaged portion of the joining pin is released, thereby enabling the clip to be polled out from the joining pin. Merely deforming the outer peripheral portion of the clip inward enables the engagement with the joining pin to be released.