The invention relates to a method for effectively separating starch and cellulose from yellow ginger, comprising the following steps of: adding a chemical catalyst in a suspension containing yellow ginger, water and organic solvent; sufficiently rupturing the connection between the mixture of starch and cellulose in the yellow ginger and saponin for 1-4 hours at the temperature of 40-80 DEG C andunder the alkaline condition; subsequently extracting the saponin by an ethanol solvent; and subsequently separating the mixture of starch and the cellulose by a centrifugal filtration way. The methodhas the advantages of capable of separating the starch and the cellulose (accounting for 80% of the weight of the dry ginger), no loss of saponin during the separation process, low consumption, highefficiency, environmental protection, and establishing foundation for realizing the cleaning production process.