A pulse current auxiliary superplastic forming (PCASF) is developed to solve the problems of high energy consumption and low efficiency of Ti-6Al-4V alloy superplastic forming. In this process, the sheet was connected in series with a pulse current circuit and heated directly by the pulse current. Through the pulse current heating experiment, the effects of the average current density on the temperature and the rate of temperature rise have been studied. The result indicates that the heating time is reduced from tens of minutes to dozens of seconds, and the energy consumption is reduced to 20% compared to the traditional process. Thus the heating efficiency is improved and the energy consumption is reduced greatly. The green superplastic forming technology with the merit of energy conservation becomes possible. The double hemisphere structure of Ti-6Al-4V alloy has been formed by PCASF and its deformation mechanism has been studied