The discharge characteristics of the series surface/packed-bed discharge(SSPBD)reactor driven by bipolar pulse power were systemically investigated in this study.In order to evaluate the advantages of the SSPBD reactor,it was compared with traditional surface discharge(SD) reactor and packed-bed discharge(PBD) reactor in terms of the discharge voltage,discharge current,and ozone formation.The SSPBD reactor exhibited a faster rising time and lower tail voltage than the SD and PBD reactors.The distribution of the active species generated in different discharge regions of the SSPBD reactor was analyzed by optical emission spectra and ozone analysis.It was found that the packed-bed discharge region(3.5 mg/L),rather than the surface discharge region(1.3 mg/L) in the SSPBD reactor played a more important role in ozone generation.The optical emission spectroscopy analysis indicated that more intense peaks of the active species(e.g.N_2 and OI) in the optical emission spectra were observed in the packed-bed region. The discharge characteristics of the series surface / packed-bed discharge (SSPBD) reactor driven by bipolar pulse power were systemically investigated in this study. In order to evaluate the advantages of the SSPBD reactor, it was compared with traditional surface discharge (SD) reactor and packed-bed discharge (PBD) reactor in terms of the discharge voltage, discharge current, and ozone formation. SSPBD reactor exhibits a faster rising time and lower tail voltage than the SD and PBD reactors. The distribution of the active species generated in different discharge regions of the SSPBD reactor was analyzed by optical emission spectra and ozone analysis. It was found that the packed-bed discharge region (3.5 mg / L), rather than the surface discharge region (1.3 mg / L) played a more important role in ozone generation. The optical emission spectroscopy analysis indicates that more intense peaks of the active species (egN_2 and OI) in the optical emission spectra were observed in t he packed-bed region.