According to the principles of circular economy, the concurrent development mode of flatfish aquaculture industry of China was preliminarily analyzed, the circular economy modes existing in this industry was summarized, the main obstacles to develop circular economy in this industry was explored, and the three fields of misunderstanding were illuminated on the basis of the data got from the survey on 132 flatfish aquaculture firms in the 26 counties in the main production area. Five strategies to realize the transformation from linear economy to circular economy of this industry were also suggested in this paper.