The invention discloses an isostatic pressing forming mold of rotating target. The mold comprises an elastic outer mold, a rigid inner mold and end plugs, the rigid inner mold is arranged in the innercavity of the elastic outer mold, the end plugs are arranged at the two ends of a tubular mold cavity between the elastic outer mold and the rigid inner mold correspondingly, and plastic transition
layers capable of being radially compressed with a to-be-formed
powder material and can be retracted and deformed along with the elastic outer mold is arranged on a position between one sides, facing the tubular mold cavity, of the end plugs and the to-be-formed
powder material, one faces of the plastic transition
layers which connected with the end plugs are conical concave surfaces, and conical protrusion matched and cooperate with the conical concave surfaces are arranged on the end plugs. The problems of the trumpet-shape deformation and non-uniform density are solved through the plastic transition
layers; a rigid supporting sleeve and a positioning device enable the
powder material to be more uniformly filled, an arc-shaped
metal clamping plate and a flexible layer are combined to enable the elastic clamping device to tightly wrap round a tubular biscuit all the time, so that the shape of the tubular biscuit is regular, the wall thickness is uniform, the size precision is high; andthe obtaining of the high-performance target is facilitated by
sintering, and meanwhile, the later turning amount is reduced, the material
utilization rate is increased, and the production cost is reduced.