Abstract: Sea clutter is an important influencing factor for sea radar target detection, and the accurate knowledge of sea clutter characteristics has been a hot and difficult issue in the field of radar technology. In the paper, we review the progress of systematic research on sea clutter from three aspects: sea clutter measurement, data processing and sea clutter modeling at the China Research Institute of Radiowave Propagation. Combing specific experimental measurement systems and data, the sea clutter measurement techniques and data processing methods of different platforms are introduced. Sea clutter modeling is highlighted in both traditional empirical modeling and deep learning-based artificial intelligence modeling. Finally, the future works of sea clutter research are prospected in terms of measurement, modeling and theoretical studies.