[Objective] The aim was to study the effects of music acoustic frequency on the contents of indoleacetic acid (IAA) in 6 species of vegetables. [Method] Music acoustic frequency group and control group were designed to determine the related growth indicators of unified managed 6 species of vegetables regularly. The contents of indoleacetic acid were detected by the High Performance Liquid Chromatography (HPLC). [Result] The music acoustic frequency had significant increased the contents of indoleacetic acid in 6 species of vegetables, which were significantly higher than that in the control. [Conclusion] The music acoustic frequency could stimulate the IAA secretion by plants.