With Gleeble-1500 heat simulator performing heat compressive deformation on Ti-1300 near β alloy, its heat deformation behavior is researched with the temperature range of 800~1010 ℃, strain rate of 0.01~10 s-1 and maximum deformation of 60%. The structure analysis after heat deformation indicates that re-crystallization primarily occurs under the condition of low rate of strain, but dynamic recovery under the condition of high rate of strain. According to the test data, the manufacturing drawing of this alloy is obtained. The result indicates that for Ti-1300 alloy, rheological phenomenon easily occurs under the condition of high rate of strain which leads its unstableness. Therefore, its forging procedure should be performed under relative low rate of strain, thus relative fine structure of equal axial dynamic re-crystal could be obtained