The spectrum of highly ionized titanium was studied by means of the beam-foil technique.Titanium ions were provided by the HI-13 tandem accelerator at China Institute of Atomic Energy.The experimental results are compared with those of laser-produced plasmas. Numerous lines attributed to Ti ⅩⅥ to ⅩⅧ ransitions have been identified,and three of them were newly measured, which were attributed to 2s2p2 4P3/2—2p3 2D3/2, 2s2p2 1S0—2sp3 1P1 and 4p 1P0—5d 1P1　transitions.