The purpose of this investigation was to determine the extent to which NIR light influenced the golf-putting performance. One-hundred eight college students participated in the study. Four experimental conditions were created: (1) an active group with expectancy instructions, (2) an active group without expectancy instructions, (3) a placebo group with expectancy instructions, and (4) a placebo group without expectancy instructions. Subjects performed 40 acquisition trials followed. ANOVAs with repeated measures on the last factor were performed on the various dependent variables: absolute error(AE), variable error(VE), directional error(DE), and radial error(RE). The results of this investigation revealed significant main effects for Groups on the absolute error(AE) and variable error(VE). Participants in the active group with expectancy instructions and an active group without expectancy instructions group were significantly better than the other placebo groups in the absolute error(AE) and variable error(VE). In conclusion, the placebo effect does not influence motor skill tasks in which perception and cognitive information processing are important.