The invention relates to a method for processing dewatered vegetables. The method comprises the following steps of: picking of raw materials, cleaning and sterilization, slicing and sterilization, swing drying, baking, microwave sterilization and disinfection, sterile picking, magnetic separation and packaging, wherein in the cleaning and the slicing steps, the solution of sodium hypochlorite is used for the soaking sterilization treatment twice, and after baking, the microwave sterilization treatment is applied. Compared with the prior art, the method has the advantages that: triple sterilization and disinfection treatments are applied; moreover, the microwave sterilization process is advanced, fast, uniform, safe and harmless, the content of bacterial microorganisms of the product can be controlled within 5,000 units per gram, and the products meet the quality requirements of international markets on dewatered vegetables.