Abstract: Previous studies show that the CO2-rich syngas is harmful to Fischer Tropsch (FT) and alcohols synthesis in terms of conversion and yield. Therefore, the reduction of CO2 content in bio-syngas is essential before synthesis. A novel enhanced reforming process of the CO2-rich bio-syngas into CO-rich bio-syngas by adding electric current was investigated at atmospheric pressure using a mixture of rice husk char and NiO/Al2O3 catalyst. The current promotion effect was examined in temperature ranges from 400 to 800 ℃ and current ranges from 0 to 4 A. The results indicate that the promotion effect of current is remarkable. The CO2 in bio-syngas is almost completely converted (99.5%) into CO at 4 A and 800 ℃. The current promotion effect is attributed to the synergy of dissociation of CO2 on the surface of NiO/Al2O3 catalyst induced by the thermal electrons, proved by the measurement of TOF-MS (time of flight mass spectrometer) and local heat effect which is helpful to the conversion of CO2.