Abstract: Based on the electron beam cold hearth melting(EB) of EBCHR 6/200/3600 with the power of 3 600 kW, the production technology of TC4 titanium alloy slab ingot with the 100% residual titanium material by one time Eb smelting is studied, and the feasibility is analyzed by comparing with production practice of industrialization. The results show that when the material method, the ratio of ingredients and the volatilization rate of Al element are well controlled and the smelting process is reasonable, TC4 titanium alloy EB slab ingot according with national standard could be produced.