The invention discloses a slicing device suitable for a melon vegetable ovary in-vitro culture experiment, belongs to the technical field of agricultural product cutting, and solves the problem of lowefficiency of manual slicing by experimenters. The slicing device comprises a base, a protective casing, a feeding groove, a receiving box, a pushing unit and a slicing unit, wherein the base is alsoprovided with an adjusting unit; the adjusting unit comprises a first mounting seat, a first linear bearing, a linear spiral measuring instrument, a first guide rod, a positioning plate and a limiting ...