The invention relates to the technical field of ceramic production, in particular to a ceramic blank drying device in a ceramic production process. The ceramic blank drying device comprises two supporting columns; a drying mechanism is arranged on the supporting columns; the front and the rear of the drying mechanism are connected with a front drying mechanism connecting piece and a rear drying mechanism connecting piece correspondingly; a rectangular cavity penetrating through the drying mechanism is formed in the drying mechanism; a plurality of transmission wave guides communicating with the rectangular cavity are arranged on the drying mechanism; a microwave oscillator is arranged on each transmission wave guide; a plurality of fans are arranged on the cavity wall of the rectangular cavity; a heater is arranged on one side of each fan; a plurality of heat dissipation holes communicating with the rectangular cavity in the drying mechanism are formed in each side surface of the drying mechanism; and a blank storage mechanism is arranged in the rectangular cavity in the drying mechanism in a penetrating manner. Omnibearing drying treatment can be carried out on a blank, and heating and heat dissipation of the ceramic blank drying device are uniform due to the structure, so that the implementation time is short, the speed is high, drying is uniform and thorough, the cost is reduced and the efficiency is improved.