Rice-duck mutualistic organic farming in the Yellow River Delta area improves rice quality by increasing grain width, brown rice rate, and head rice rate while reducing chalkiness. This is achieved by boosting panicle numbers and grain mass and decreasing inferior grains. The use of organic manure enhances gel consistency, lowers amylose and protein contents, and improves rice taste. By avoiding chemical fertilizers and pesticides, pesticide residues are significantly reduced or eliminated. Overall, rice-duck farming enhances rice quality and environmental protection, making it a beneficial ecological technology for high-quality rice production.