The effects of a weak electric field on the growth and metabolic behavior of E. dissolvens were investigated using glucose as the sole carbon source. A Alternating current (AC) was applied using salt bridge electrodes and platinum electrodes. When 10 mA current were applied water elctrolysis was not induced in the process of AC stimulation.The best stimulating effects in terms of cell growth and the dehydrogenase activity(DHA) were obtained when a AC of 100mA was applied for 12 hour via the platinum electrodes. In this case, the electrolysis of water was the major electrode reaction, as determined by cyclic voltammetry. The presence of the hydrogen generated a strong reductive environment and led to a reduction environment. The specific activity of dehydrogenase and glucose consumption increased 1.4 and 2.17 fold, respectively. The application of the AC via the platinum electrodes also led to accelerated cell growth during the later stationary phase. This is possibly due to the presence of anodic intermediates including H₂O₂, OH^• and O₂^•. These results provide more details for understanding the effect of a AC on E. dissolvens, a strain with potential application in the electro-remediation of PAHs contaminated soil.