Abstract: Forming characteristic of TC6 titanium alloy actuator forgings was analyzed by means of simulation and experiment. Firstly, the finite element model for isothermal forging of TC6 actuator was established by means of Deform-3D simulation software. Secondly, the material flow, cavity filling sequence and forming load change law during the isothermal forming process were revealed by simulation results. Finally, the reliability and effectiveness of the simulation process were verified by experiments. The results show that the forming process is divided into four stages, the three stages in front have two extrusion modes: positive extrusion and reverse extrusion. In the fourth stage, the forming process is reverse extrusion because the solid cylinder area is filled. Subsequently, the stress and strain of different areas were analyzed according to the distribution characteristics of the stress and strain field.