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In the text, a commercial software ANSYS was used to simulate hot-push forming technology on TA2 titanium ring pipe Concave edge strain and stress, convex edge strain and stress, flank edge strain and stress even the change of wall thickness during deformation were studied. It is shown that equivalent stress is enlarge with the bending angle in bending deformation; equivalent strain in concave edge is greater than that of convex edge and the value of equivalent strain is enlarge with the bending angle; In the bending deformation, the bending radius is small and the bending deformation is large. As a result, the thickness of concave edge is thickening which received the compress stress and that of convex edge is reducing which received tensile stress. The conclusion of numerical simulation and test are accordant.