Apparatus for dosing powdery or granulated materials in capsules, or the like. The apparatus comprises an engine associated with a transducer controlling chuting means. The engine imparts to the chuting means movements which are proportional to an electric signal controlled by an electronic control unit. The movements of the chuting means, together with the regulation of the spatial position assumed by the chuting means, are such to accurately dose the powdery or granulated material in the bases of the capsules.