Based on gradient-dependent plasticity where an internal length parameter is included to consider the microstructural effect, the distributions of shear deformation, shear strain and temperature in adiabatic shear band were derived considering the slow and sharp decrease of load-carrying capacity beyond the peak shear stress. For Ti-6Al-4V, the distributions and evolutions of shear deformation, shear strain and temperature in shear band were calculated. In the band, the local plastic shear strain and temperature are highly nonuniform due to interactions and interplay among microstructures. The nonuniformity increases with the increase of imposed plastic shear strain. As flow shear stress decreases, the maximum plastic shear strain in the band linearly increases and the maximum temperature nonlineady increases. The prediction values of shear strain and temperature in shear band based on gradient-dependent plasticity are higher than those by use of classical elastoplastic theory. The present theoretical results on shear deformation and strain in shear band for Ti-6Al-4V are compared with the calculations according to previous high-speed photographs and the same tendencies are found. However, the theoretical prediction value of the maximum shear strain in the band is still lower than experimental measurement value.