A novel seed dressing device, which relates to the technical field of agricultural machinery, and solves problems faced in the seed dressing process such as uneven pesticidal liquid stirring, time-consuming and labor-intensive, low efficiency, potential security risks, etc. A blocking cover (18) is provided at the upper end of a machine body (13), a cover body (19) being provided on one side of the blocking cover, the cover body being hinged to the blocking cover by means of a hinge, a discharge port (14) being provided at the lower end of the machine body, a machine frame (15) being provided at each lower end of both sides of the machine body, an electric motor (6) being provided on the blocking cover, a rotary shaft (8) being provided in the machine body, spiral blades (10) being provided on the rotary shaft, stirring blades (11) being provided on the spiral blades, and the electric motor being connected to the rotary shaft. The cover body can be opened to put seeds and pesticides into the machine body, and dust is partially blocked by means of the blocking cover to protect the environment; meanwhile, the spiral blades and stirring blades ensure that the seeds and pesticides are stirred evenly.La présente invention concerne un nouveau dispositif de traitement des semences, qui concerne le domaine technique des machines agricoles, et résout les problèmes rencontrés dans le procédé de traitement des semences tels que l'agitation inégale de liquide pesticide, l'aspect chronophage, la forte exigence en main d'œuvre, la faible efficacité, les risques de sécurité potentiels, etc. Un couvercle de blocage (18) est prévu à l'extrémité supérieure d'un corps de machine (13), un corps de couvercle (19) étant prévu sur un côté du couvercle de blocage, le corps de couvercle étant articulé au couvercle de blocage à l'aide d'une charnière, un orifice d'évacuation (14) étant prévu au niveau de l'extrémité inférieure du corps de machine, un cadre de machine (15) étant prévu à chaqu