An inner layer 5 consisting of commercially pure titanium or a titanium alloy, a surface layer 3 having a different chemical composition than the inner layer 5 formed on at least one surface of the inner layer 5, is formed between the inner 5 and the surface layer 3, the inner layer 5 and an intermediate layer having a different chemical composition than the, the surface layer 3, and the thickness thereof is 2μm or more, a percentage of the total thickness is not more than 40% per side, the thickness of the intermediate layer is 0 it is .5μm above, titanium composite material 1. The chemical composition of the surface layer 3, Fe, Cr, Ni, 1 or more selected from Al and Zr: from 0.08 to 1.0%, the balance: titanium and impurities. The titanium composite material, despite the inexpensive, have the desired properties.