Processors are key stakeholders in the fish and fish product supply chain. With China being a major hub for global fish production and trade, there is surprisingly limited research on its fish processing industry. In 2020, we surveyed 100 fish processors in Zhejiang Province, China on their major products, markets and inputs, and their perceptions for important management and market changes in the past few years. This study applies the input-output model to understand the basic economics characteristic, and identifies important features for development. This study will contribute to the existing knowledge on the fish supply chain and for improving the cross-sector coordination in policy design.