Ceramic forming mold with adjustable wall thickness and method for preparing ceramic by using mold

The invention relates to a wall-thickness-adjustable ceramic forming mold and a method for preparing ceramic through the mold, and relates to the technical field of ceramic preparation, the wall-thickness-adjustable ceramic forming mold comprises an outer mold and an inner mold, the outer mold comprises a bearing mold, two sealing and releasing molds and a covering mold, each end of the bearing mold corresponds to one sealing and releasing mold, and the sealing and releasing molds are detachably connected to the end of the bearing mold; the bearing mold and the two mold sealing molds jointly define a grouting cavity, and the inner mold is arranged in the grouting cavity. A fixing piece is arranged on the outer mold and used for connecting the inner mold to the inner wall of the grouting cavity. The covering mold is detachably connected to one side of the bearing mold, and the covering mold is used for opening and closing the grouting cavity; a slurry inlet used for allowing slurry to enter the grouting cavity