In the present research, we investigated which guides the pursuit eye movements, physical stimuli or visual illusions, for moving targets along the illusory curves of Hering and Wundt figures. A video eye tracker (View Point PC60) was used to record the eye movements during observers pursuing a target which was composed by a red dot moving along a Hering or Wundt illusory curve, which is actually a straight line but perceived as a curve due to the radial background. The scanning path of pursuing targets moving along a real curve with same curvature as the illusory curve, and a straight line, were also recorded for comparisons. The results showed that the recorded scanning paths of pursuing a target moving along the illusory curve were closer to the scanning paths of pursuing a curve than to the scanning paths of pursuing a straight line. The findings are consistent with our previous research using Muller-Lyer illusory patterns, and suggest that the visual illusion guides the pursuit eye movements in those cases. Pursuit eye movements may be guided by the WHAT rather than by the HOW visual information processing streams.