Objectives : Neurological disorders have been one of main therapeutic targets of acupuncture. The present study investigated the protective effects of Gwakhyangjeonggisan herbal acupuncture solution (GHAS). Methods : We performed 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in glioblastoma cells, and did microarray analysis with cells exposed to reactive oxigen species (ROS) of hydrogen peroxide by 8.0 k Human cDNA, with cut-off level of 2-fold changes in gene expression. Results : MTT assay showed protective effect of GHAS on the glioblastoma cells exposed to hydrogen peroxide. When glioblastoma cells were exposed to hydrogen peroxide, 16 genes were upregulated. When the cells were pretreated with GHAS before exposure to hydrogen peroxide, 22 genes were upregulated. Most of the genes upregulated by hydrogen peroxide stimulation were reversed to downregulation by GHAS. Conclusion : The gene expression changes observed in the present study are supposed to be related to the protective molecular mechanism of GHAS in the glioblastoma cells exposed to ROS stress.