Abstract: Sea ice occurs in offshore waters of Hebei province at different degrees every winter.Real-time continuous monitoring of sea ice changes is of great significance for the formulation of effective measures for disaster prevention and mitigation.The sea ice information in offshore waters of Hebei province of 8 winters from 2010 to 2018 was extracted by using multi-source satellite remote sensing data such as MODIS, HJ-1, GF-1 and GF-4.The spatial and temporal variation characteristics of sea ice were analyzed by taking ice period, severe ice period, maximum ice area, maximum floe ice edge and maximum superposition frequency as statistical indexes.The results showed that the sea ice in offshore waters of Hebei province usually started in mid or late of December, and finally ended in late of February of the following year.The ice period was generally 50~60 days, and severe ice period occurred in late January to early February.In the general ice year, the sea ice usually first appeared in offshore waters of Tangshan and finally ablated in offshore waters of Cangzhou.From 2010 to 2018, the sea ice conditions in the first 3 years were relatively stable and relatively serious.In the last 5 years, the ice conditions changed relatively sharply, with relative light ice year and relative severe ice year almost interval appeared.On the whole, the severity of sea ice conditions showed a downward trend in the monitoring period.