Abstract: With advancement of citrus industry modernization, requirements of citrus nutrient management are getting higher and higher．Citrus orchards in China are mostly distributed in hilly areas in the south, and nutrient contents of various elements in soil are uneven．Aiming at problem of citrus quality reduction caused by unreasonable nutrient management mode of citrus, adverse factors of citrus nutrient absorption were analyzed based on principle of citrus nutrient requirement, and some suggestions for production regulation were put forward to provide a reference for nutrient management of citrus orchards in China．