Now using titanium-bearing material to product titanium and titanium alloy based on Fusedsaltelectrolysis method has become an important research direction at home and abroad. But less research has been done on the kinetics of Fusedsaltelectrolysis process. Electrolysis kinetics for different temperature was studied using an improved model, internal diffusion was considered as the restrictive link of electrolysis process of Ilmenite concentrate in molten salt. High reaction temperature and big porosity of cathode can be used to improve the internal diffusion speed, however, at this case, side reaction will increase, which affects the electrolysis speed at the same time.