Based on the research results of rice-crab cultivation in recent years, through surveys and visits to professional households, family farms, cooperatives and enterprises, and access to recent statistical yearbooks, the status, development advantages and existing problems of rice-crab cultivation in the coastal rice planting area of Liaoning Province were analyzed, and the bottleneck restricting the increase in the comprehensive income of rice-crab cultivation was identified. Finally, three suggestions were put forward: unit construction management to optimize resource allocation, the optimized high-light-efficiency rice-crab cultivation mode with row interval, the multi-disciplinary combined method to improve quality and economic benefits, in order to provide theoretical guidance and methodological basis for rice-crab cultivation in the area.