The conventional Arrhenius-type model was adopted to identify the deformation characteristic of Ti6A14V (TC4) titanium alloy based on the stress-strain curves of isothermal compression test.A new flow stress model based on Arrhenius equation was proposed for TC4,which is composed of peak flow stress (PFS) prediction and strain compensation.The predicted PFS is set as a refer-ence to derive the flow stress model at any strain ranging from approximately 0 to 0.7.The predictability and effi-ciency among the proposed model,conventional model,and an existing physical-based model of TC4 were com-paratively evaluated.It is found that the newly proposed model can simultaneously track the hardening and soften-ing behaviors of TC4 through a single expression while the other existing models are only valid in the softening region.Besides,the wider application range and acceptable accu-racy of the new model have been achieved by fewer material constants with much-simplified modeling proce-dure than the other models.