A component supplying apparatus and a reel can be easily and integrally managed when not supplying components, and the component supplying apparatus can be made to be compact when the component supplying apparatus and the reel are not integrally managed. The component supplying apparatus (50) has an apparatus main body section (53), provided with a feeding apparatus (52) for pulling out a tape (TP), which holds components at fixed intervals, from a reel (80) toward a prescribed component supplying position, and a main body frame (500) on which the feeding apparatus (52) is mounted. The component supplying apparatus (50) is removably mounted on a surface mounting machine (10). The component supplying apparatus (50) is provided with an engaging section (100) as reel holder, which is mounted on the apparatus main body section (53) and is displaced between a holding position where the reel (80) is held and a storing position where the reel (80) is not held.