The Raman spectra of LiTaO3 have been studied from 20℃ to 800℃. No softening of ferroelectric mode has been detected. The striking feature of our results is that the Raman spectra of the ferroelectric phase merge into the paraelectric phase without any appreciable discontinuity at the phase transition. On the basis of these new experimental results and the crystal structure data in literature, we suggest that the ferroelectric phase transition in LiTaO3 may have an order-disorder character.