Two-dimension numerical research has been carried out on the ablation of metal Ti target irradiated by intense pulsed ion beam(IPIB) produced by TEMP Ⅱ accelerator. Spatial and temporal evolution of the ablation process of the target during the pulse time has been obtained. Melting and evaporation processes begin from the surface of the target and the ablation process of target is layer by layer while the target is irradiated by IPIB. Meanwhile, we have also obtained the result that the average ablation velocity in center region of the target is about 10m/s, which is far lower than the ejection velocity of the plume plasma formed during the pulse time. The effects have been compared for different ratios of two kinds of ions in the pulsed beams produced by using different kinds of materials as the anode of magneto-isolated diosts during the irradiation time.