The blast furnace ironmaking process is one of the most energy-consuming processes in iron and steel metallurgy. Under the call of the national policy of "carbon reduction and carbon reduction", ensuring the stable and smooth operation of blast furnace is an important prerequisite for energy conservation and emission reduction. The position and shape of the blast furnace soft melt zone have an important impact on the distribution state of the gas flow in the furnace and the stable anterograde of the blast furnace. The reducing atmosphere of the blast furnace under high oxygen-enriched injection conditions is simulated, and the softening droplet test of vanadium and titanium charge is carried out by using a high-temperature droplet melting furnace under different reducing atmosphere conditions. The results show that with the increase of oxygen enrichment, the volume fraction of CO in coal gas increases, the softening start temperature and softening end temperature of vanadium and titanium charge decrease, and the softening temperature range becomes larger. When the CO volume fraction is increased from 30% to 45%, the temperature at the beginning of softening is decreased by 72 ℃, the temperature at the end of softening is decreased by 43 ℃, and the softening temperature range is expanded by 29 ℃. After oxygen-enriched injection, the melting start temperature increases, the fluidity of the slag becomes better, and the quality of the dripping matter increases. After oxygen-enriched injection, the soft melt zone of vanadium and titanium charge shows a trend of "moving up and expanding", the maximum pressure difference of the soft melt belt gradually decreases, the air permeability is improved, the migration of Ti elements to the slag is enhanced, and the migration of Fe elements to the slag is inhibited.