The invention discloses a production technology for a semi-transparent ceiling. The production technology comprises the following steps: S1) weighting slab raw materials; S2) smashing the slab raw materials and adopting an extruding machine to perform extrusion molding on a mixture under a molten state, thereby forming a slab; S3) preparing a first coating: weighting the raw materials of the firstcoating, dispersing the raw materials with ultrasonic wave and filtering, thereby acquiring the first coating; S4) preparing a second coating: weighting the raw materials of the second coating, dispersing the raw materials with ultrasonic wave and filtering, thereby acquiring the second coating; S5) coating the first coating on one side of the slab and coating the second coating on the other sideof the slab, thereby acquiring the semi-transparent ceiling. In the invention, epoxy resin and polyurethane resin are adopted for increasing the tensile strength and bearing capacity of the slab; calcium oxide, quartz powder, aluminum oxide, talcum powder and calcium carbonate are used as filling materials, so that the production cost can be effectively saved; due to an ultraviolet light absorber, the slab has a capacity of absorbing ultraviolet light from sunlight.