Abstract: An ecological conservation system and method for an artificial coastal wetland are provided. The system can include a fish and shrimp ecological breeding area, an artemia breeding area and a bromine extraction and salt production area, where a water inlet channel is arranged on a side of the fish and shrimp ecological breeding area; a sedimentation and biological purification channel is arranged between the fish and shrimp ecological breeding area and the artemia breeding area; a drainage channel is arranged between the artemia breeding area and the bromine extraction and salt production area; and waterfowl habitat islands are built in the fish and shrimp ecological breeding area and the artemia breeding area.