The research on the interactions between surface water (SW) and groundwater (GW) has important significance in theoryand practice for comprehensively managing water resources in floodplain wetlands. This paper conducted the review of SW-GW interactionsin floodplain wetlands, which provides useful information for understanding the development, trend and methods of SWGWinteractions. Generally, floodplain wetland is a distinctive hydrological system in various ecological systems. The dynamic processesof SW-GW interactions enhance the transfer and exchange for mass, energy and information in floodplain wetlands, whichare strongly influenced by the specific hydrological variations and periodic flood pulses in their adjacent surface waterbodies. In addition,the SW-GW interactions have important effects on the eco-hydrology, including the wetland evolution, material cycling andbiological growth. The interdisciplinary theories and methods determined by the openess and complexity in floodplain wetlands arebecoming the popular strategy to explore the SW-GW interactions. The SW-GW fitted numerical models combined with multisourcedata can be used to reveal the interactions between floodplain GW and adjacent SW and other associated scientific questions. Theoutcomes in this study will contribute to the water resources and ecological effects in floodplain wetlands.