A dosing apparatus for dosing long-type pasta, comprising: a feeding channel for feeding long-type pasta; a rough dosing channel and a fine dosing channel, said dosing channels (2, 3) being in communication with said feeding channel so as to receive long-type pasta, said dosing channels (2, 3) being oriented in such a way as to dose long-type pasta by gravity; first vibration means that are operatively active on the rough dosing channel for imparting a vibration thereto so as to facilitate the descent of long-type pasta within the rough dosing channel, said rough dosing channel comprising a first feeding portion on which the first vibration means are operatively active for imparting the vibration and a rough dosing portion arranged downstream of said first feeding portion, said rough dosing portion comprising first guiding means arranged so as to define a first internal space within which the pasta dough is confined and guided in its descent; second vibration means that are operatively active on the fine dosing channel for imparting a vibration thereto so as to facilitate the descent of long-type pasta within the fine dosing channel, said second vibration means being independent from the first vibration means; a first partition element arranged transversely to the rough dosing channel, said first partition element being movable therethrough, characterised in that said guiding means comprise two pairs of guides, the guides of the pair being arranged at opposite corresponding sides of the rough dosing portion, the two pairs of guides being distanced from one another so as that the first partition element enters the first internal space between the two pairs of guides; and in that the dosing device further comprises a first deformation limiting device arranged opposite to said first partition element with respect to the rough dosing channel so as to limit the deformation induced by the insertion of the first partition element into the pasta dough; wherein the guides and the corresponding deformation limiting device have elongated development according to parallel directions, said deformation limiting device being a shaped profile representing a mechanical stop for the deformation of the pasta dough. a feeding channel for feeding long-type pasta; a rough dosing channel and a fine dosing channel, said dosing channels (2, 3) being in communication with said feeding channel so as to receive long-type pasta, said dosing channels (2, 3) being oriented in such a way as to dose long-type pasta by gravity; first vibration means that are operatively active on the rough dosing channel for imparting a vibration thereto so as to facilitate the descent of long-type pasta within the rough dosing channel, said rough dosing channel comprising a first feeding portion on which the first vibration means are operatively active for imparting the vibration and a rough dosing portion arranged downstream of said first feeding portion, said rough dosing portion comprising first guiding means arranged so as to define a first internal space within which the pasta dough is confined and guided in its descent; second vibration means that are operatively active on the fine dosing channel for imparting a vibration thereto so as to facilitate the descent of long-type pasta within the fine dosing channel, said second vibration means being independent from the first vibration means; a first partition element arranged transversely to the rough dosing channel, said first partition element being movable therethrough, characterised in that said guiding means comprise two pairs of guides, the guides of the pair being arranged at opposite corresponding sides of the rough dosing portion, the two pairs of guides being distanced from one another so as that the first partition element enters the first internal space between the two pairs of guides; and in that the dosing device further comprises a first deformation limiting device arranged opposite to said first partition element with respect to the rough dosing channel so as to limit the deformation induced by the insertion of the first partition element into the pasta dough; wherein the guides and the corresponding deformation limiting device have elongated development according to parallel directions, said deformation limiting device being a shaped profile representing a mechanical stop for the deformation of the pasta dough.