The invention discloses a novel black garlic bulb fermentation machine and aims at providing a novel fermentation machine which is simple in structure, durable, convenient to operate and suitable for demands of different clients. The novel black garlic bulb fermentation machine comprises a fermentation box 1, a fermentation box cover 2, a fermentation box bearing bracket 3, a heating wire or a heating board 4, a mesh-shaped tray rack 5 in the fermentation box, a plurality of small exhaust holes 6 in the fermentation box cover, a fermentation box temperature displayer 7, a temperature controller 8, a temperature inductive head 9, a sealing rubber strip 10 on the edge of the fermentation box, and an inner interlayer, an outer interlayer and a machine door interlayer heat preservation material 11 of the novel black garlic bulb fermentation machine.