The invention relates to the technical field of ceramic production spraying, in particular to a glaze spraying device for comprehensive and uniform spraying in ceramic production. The glaze spraying device comprises a processing box, a collecting tank is arranged on the inner wall of the bottom end of the processing box, supporting legs are symmetrically arranged on the inner walls of the bottom ends of the left and right sides of the processing box, a processing table is arranged at the upper ends of the supporting legs, and a sucker is arranged at the top end of the processing table. The glaze spraying device is simple in structure, a first rotating motor, a first connecting plate, a second thrust ball bearing, a second rotating motor, a second connecting plate, a first gear, a second gear, an execution motor, an execution screw, a sleeve, a stop block, a lifting plate, a first spraying box, a first spray head, a second spray head and a second spraying box are arranged and used in cooperation, the glaze spraying device can comprehensively and uniformly spray glaze inside and outside a ceramic part, the glaze spraying effect is good, the glaze spraying quality of the ceramic partis guaranteed, and the working efficiency is improved.