The invention discloses a ceramic roller isostatic pressing forming process. The process comprises: sleeving a rubber outer film on a tubular blank body encased in a rigid tube-body inner mold; taking a whole as a workpiece, placing the workpiece in an autoclave and utilizing compressed air as a pressure medium to apply static high pressure to the workpiece; and releasing pressure, demolding and placing the tubular blank body into a kiln for calcination. The invention also discloses an air isostatic device specially for the ceramic roller isostatic pressing forming process, comprising a frame, a tubular isobaric cylinder having openings at two ends for housing high pressure air and workpiece, and liquid seal pieces and air seal pieces are arranged between the fixed choke plugs, the movable choke plugs and the isobaric cylinder, and a liquid-filled ring cavity is arranged between the liquid seal pieces and the air seal pieces. The liquid-filled ring cavity is used to achieve the seal of the high pressure compression air, thus the isostatic pressing process with air medium can be realized.