Abstract: The increasing frequency of global drought events has driven a continuous rise in the proportion of intermittent rivers in the global river network(exceeding 50%).As active sources of greenhouse gas (GHG) emission in aquatic ecosystems,their emission fluxes are frequently overlooked by traditional estimation models (carbon emissions from dry riverbeds account for 14%-77% of total fluvial emissions),and their potential impacts on global carbon and nitrogen cycles as well as climate change urgently require systematic elucidation.Given that GHG-related studies account for merely 3.42% of the total research on intermittent rivers in recent years,this review summarizes the emission characteristics of three key GHGs (CO₂,CH₄,and N₂O) during dry riverbeds,isolated pools,and rewetting phases,as well as the differences among these phases.It systematically analyzes the regulatory effects of key driving factors including sediment moisture,temperature,organic matter content,and sediment texture on GHG emissions,clarifies the spatiotemporal heterogeneity of GHG emissions from intermittent rivers at the river network scale and the prevailing underestimation of these emissions (ranging from 14% to 50%,and exceeding 70% in extreme regions),and emphasizes the necessity of conducting integrated research on intermittent rivers from the river network perspective.Finally,in light of the limitations of existing research,this review proposes priority directions for future studies,aiming to provide theoretical support for the ecological conservation of intermittent rivers,water resources management,and the accurate accounting of global GHG emissions.