Pulsed electric discharge in water has been intensively studied recently for industrial, environmental and biomedical applications as a prolific source of different active species and reactive radicals. The main purpose of this work is to investigate effects of three parameters- such as gap distance, electrode configuration and pulse repetition rate on hydrogen peroxide generation using pulsed discharge in bubbling water. A ceramic filter is employed to isolate both gas and liquid phases and generate bubbles by feeding argon gas through the filter. The experimental results are as follows: the concentration of H₂O₂ increases significantly with a shortened gap distance, and discharge characteristics change from streamer-like to arc-like discharges depending on the propagation of streamer through bubbles to the ground electrode. An increased yield of H₂O₂ was also found with treatment time, pulse repetition rate and use of the needle-to-mesh electrode configuration.