The objective of the present invention is to provide: a dual-driving one-way rotational device capable of simultaneously rotating an inner rotation object and an outer rotation object in the same direction or rotating only the rotation object positioned therein, and capable of manually and electrically rotating rotation objects; and a reel including the dual-driving one-way rotational device so as to enable a fishing line to be manually and electrically wound around a spool. The dual-driving one-way rotational device according to the present invention comprises: a main body part; a clutch bearing part which is provided inside the main body part and which guides one-way rotation of the main body part; and a knob part which is mounted on the clutch bearing part, and which rotates only in one direction while connected to an object to be rotated or enables the main body part to rotate the object to be rotated and the clutch bearing part only in one direction. The reel according to the present invention comprises: a reel frame; a reel main body including a spool, which is provided at the reel frame so as to be rotatable in place and has the fishing line wound around the outer surface thereof; and the dual-driving one-way rotational device for rotating, in one direction, a rotary shaft provided at the spool.La présente invention a pour objet de fournir : un dispositif rotatif unidirectionnel à double entraînement apte à faire tourner simultanément un objet de rotation interne et un objet de rotation externe dans la même direction ou à faire tourner uniquement l'objet de rotation positionné à l'intérieur dudit dispositif rotatif, et apte à faire tourner manuellement et électriquement des objets de rotation ; et un moulinet comprenant le dispositif rotatif unidirectionnel à double entraînement de façon à permettre à une ligne de pêche d'être enroulée manuellement et électriquement autour d'une bobine. Le dispositif rotatif unidirectionnel à double entraînement selon la prés