Starch was extracted from Yumi 3 by alkaline method and studied the effects of additive (sucrose, sodium chloride, sodium carbonate, alum) on freeze-thaw stability, retrogradation and pasting properties of proso millet starch paste. The results showed that adding sucrose, sodium carbonate and alum can improve the freeze-thaw stability and retrogradation of proso millet starch paste. But alum had significant effect on freeze-thaw stability and retrogradation of proso millet starch paste. Compared with the control, adding alum, the freeze-thaw stability and retrogradation increased 40.7% and 78.8%. Sucrose can improve viscosity and gelation, but weaken anti-aging ability of starch paste. Sodium carbonate and alum can improve anti-aging ability, but weaken gelation of proso millet starch paste.