It is still unknown whether visual illusion can bias motor performance in Autism Spectrum Disorders (ASD) individuals. The present study aimed to evaluate the effect of visual illusion on performance in children with ASD in a far-aiming skill. In a within-subject design, participants (n = 20, IQ > 70, mean age: 10.15) performed golf putting task in the control and visual illusion condition. The quiet eye duration (QED) was measured as an objective measure of planning in golf putting performance. The QED was recorded by the eye-tracking headset. Results showed visual illusion biased golf putting performance in ASD children, but it did not affect QED in children with ASD. The findings suggest that the effect of visual illusion would bias performance in children with ASD. The results are consistent with Glover and Dixon's model. Usage of visual illusion in far-aiming skills can improve accuracy in children with ASD.