Abstract:Since the industrial revolution, mankind""s heavy reliance on fossil fuels has led to the raise of global atmospheric CO2 concentration year by year, which has caused the intensification of the greenhouse effect, resulting in global temperature rise and ocean acidification and other problems. In order to solve this problem, reducing CO2 emissions has become one of the current hotspots in scientific research. At present, there are two directions for CO2 emission reduction: capture and storage and resource utilization, among which the resource chemical utilization of CO2 has attracted much attention. Researchers have developed various reduction catalysts, among which liquid alloys are new materials widely used in the field of CO2 reduction in recent years, which avoids the problem that traditional solid catalysts are easy to coking in catalytic point and lead to inactivation. The application and mechanism of action of liquid metal in carbon dioxide electroreduction in recent years were summarized, and finally, the future development directions were prospected.