The hot compressive deformation tests of as-cast and as-extruded burn resistant titanium alloys (Ti-35V-15Cr-Si-C) were performed on the Gleeble-1500 simulator in the temperature range of 900~1200 ℃ for as-cast and 900~1150 ℃ for as-extruded alloy, over the range of strain rate from 10-3 s-1 to 1 s-1. The compressive true stress vs. true strain curves were measured, and the hot processing maps of both as-cast and as-extrude state alloys were constructed based on dynamic materials model (DMM). The results show that: (1) extrusion is the preferable ingot cogging processing technology; (2) compared to the as-cast burn resistant alloy, it is easier for the extruded alloy to generate a continuous recrystallization, and the flow localization instability for as-extruded alloy is restrained. (3) the brittleness due to carbide solution at higher temperature can not be eliminated through the processing treatment. To avoid surface cracking, the appropriate deformation temperature should be lower than 1030 ℃