Regional OceanAtmosphere Coupled models (ROAMs) have been widely developed and used as an important tool for regional climate simulation and climate change projection in recent years. The ROAMs have been applied to investigate the climate variability over the regions including Asianwestern North Pacific monsoon region, Baltic Sea, Maritime continent, eastern tropical Pacific and tropical Atlantic. In this paper, after emphasizing the scientific importance of regional airsea coupling, the authors reviewed the recent progresses in the development and application of ROAM. The coupler based ROAM without flux correction is the future developing trend of ROAM. The scientific foci with ROAM include the simulation of regional atmospheric (oceanic) processes, Asianwestern North Pacific monsoon simulation and the cold biases of simulated Sea Surface Temperature (SST), the simulation of tropical airsea interaction processes, and dynamical downscaling of regional climate change projection. The associated main ideas and conclusions are summarized. The mechanisms that why the inclusion of local airsea coupling improves the simulation of rainfall over Asianwestern North Pacific monsoon domain and the causes of cold biases of simulated SST over this domain are highlighted. Finally, some scientific issues calling for future studies in regional airsea coupling simulations are documented.