Abstract: Alums need to be added to the processing jellyfish,which resulted in high aluminum residue problems.In order to reduce the aluminum content in the salted jellyfish,the effects on dealumination of salted jellyfish using water were studied in this paper and the composition change of dealuminated jellyfish was analyzed. The results showed that under the way of stirring,using 1% acetic acid solution with solid- liquid ratio of 1 ∶ 5 for 30 min and changing the water twice,the jellyfish aluminum residue( wet base) can be reduced to 15.497 mg / kg,which met the regulations of the aluminum residue of fishery products and its products. The optimum processing can singnificantly decrease of some metal elements in jellyfish,such as calcium,manganese,iron. The optimum processing can significantly reduce processing costs,improve the quality of jellyfish products and provide the technical support for the production and processing of jellyfish products.