Abstract: Based on Landsat TM, ETM and OLI remote sensing images from 1985 to 2018 and objectoriented remote sensing extraction method, the dynamic characteristics of reclamation spatial patterns in Cangzhou sea area were analyzed with selecting spatial utilization structure, development and utilization level, landscape index and centroid transfer. The results show that the reclamation activity in the study area was vigorous in the past 33 years. From 1985 to 2018, the reclamation area in Cangzhou coastal area had increased by 137.05 km²and the scale of reclamation projects continued to expand with time. From 1985 to 2003, the structure of space utilization and types of reclamation had undergone an evolution process from main reclamation for aquaculture to all types of reclamation. The reclamation intensity increased gradually and the reclamation development intensity index reached 274.55 in 2018. The coastal sea area used for harbor development has gradually become the main type of reclamation in Cangzhou offshore waters after the reclamation for mariculture. From 1985 to 2018, the aggregation index and spread index of reclamation landscape in Cangzhou were high. The average aggregation index was as high as 99.4004 and the distribution of reclamation landscape showed a strong regularity. The spatial centroid of reclamation is constantly moving to the southeast, indicating that the key areas of reclamation development are gradually migrating to the southern sea area of Cangzhou. Under the current situation of reclamation, attention should be paid to the rational planning and intensive utilization after the reclamation activities.