The high temperature deformation of the 80% cold rolled Fe-35Mn-8Al-0.3C low-density steel were carried out under different deformation temperatures ranging from 700 to 900 °C and varied strain rates from 1× 10 -4 s -1 to 1×10 -1 s -1 . It was found that an excellent fracture elongation of 633% could be reached at initial deformation strain rate at 1×10 -2 s -1 under 800 °C. The microstructure was evolved from a banded cold rolled microstructure to an equiaxed grained microstructure, indicating