The invention provides a method for manufacturing a superplastic forming ceramic thin-wall product, belonging to the method for manufacturing a thin-wall product and aiming at solving the problems that the method for manufacturing the traditional ceramic thin-wall product needs the edge pressing force and also needs the exterior air source to inflate and expand the mould, and the air sealing is difficult. The method comprises the following steps of: (1) preparing an air bag; (2) preparing workpieces; and (3) putting the workpieces into a vacuum hot press sintering furnace, preserving the heatof the workpiece twice, cooling to room temperature, demoulding and removing the air bag to obtain the superplatic forming ceramic thin-wall product. The method of the invention does not need edge pressing force and does not need to lead air to the mould in the vacuum hot press sintering furnace, the ceramic material can be formed into integral parts at one time after the gasifying agent sealed in the air bag is expanded, the formability of the superplastic forming material is good, and the net forming can be realized.