Two voyages of the bottom trawling surveys were held this year, and 31 families and 48 species of fish, 17 species of crustaceans in 8 families, and 6 species of cephalopods in 2 families were added newly compared with the surveys in the previous two years. Main collected fish species inhabited the sandy mud bottom offshore of Miaoli and Changhua at the bottom trawling surveys in 2019-2021. Upeneus japonicus was the main species collected in both stations and is recommended as a reference for biological monitoring species. In recent years, offshore wind planning farms have been under construction and are under construction. It was suggested that the environmental disturbances caused by the underwater infrastructure should be a concern for the fishery biomass and fishing hotspots, and clarify the impact of wind farms on the fisheries, and provide scientific data as a basis for the sustainable co-development in fisheries and offshore wind industries in the future.