NOVELTY - RO water is stirred with jacketed hot water, heated and sucrose, potassium dihydrogen phosphate and dipotassium hydrogen phosphate are added and dissolved. Heating process is terminated. When the temperature lower to less than 40 degrees C, frozen yeast is added and heated. When the reaction pot temperature is increased, magnesium chloride solution, benzalkonium bromide solution and adenosine solution are added, heated, heat-preserved, cooled rapidly, subjected to D296 resin column, separated, eluted, decolorized, ultrafiltered, centrifuged the crystallization solution, dried and packed.    USE - Preparation of energy-saving adenosine disodium triphosphate (claimed).    ADVANTAGE - The method efficiently provides energy-saving adenosine disodium triphosphate by simple method in short period of time without affecting the environment.    DETAILED DESCRIPTION - Magnesium chloride is dissolved in reduced amount of reverse osmosis (RO) water to obtain magnesium chloride solution. At room temperature, adenosine is dissolved in preset amount of RO water to obtain adenosine solution. Benzalkonium bromide is dissolved in preset amount of RO water to obtain 5% benzalkonium bromide solution. RO water is stirred with jacketed hot water, heated at 40-45 degrees C and sucrose, potassium dihydrogen phosphate and dipotassium hydrogen phosphate are added and dissolved. Heating process is then terminated, cooling water is circulated. When the temperature lower to less than 40 degrees C, frozen yeast is added and gradually heated. The frozen yeast is obtained by cleaning brewer's yeast with RO water, filtering using frame filter, and freezing obtained white or pale brown sludge. When the reaction pot temperature is increased to 20 plus minus 1 degrees C, magnesium chloride solution, benzalkonium bromide solution and adenosine solution are added, heated at 36-39 degrees C and heat-preserved. The reaction pot is then cooled rapidly by adding ice. When the temperature lowers to less than 4 degrees C, the pH is adjusted to 2.5-3 using phosphoric acid. After 1 hour, the pH is adjusted to 5.5-6 using alkali. After 30 minutes, alkali is removed and washed to obtain qualified separation processing section. The squeezed liquid is diluted, subjected to D296 resin column, and processed in the flow rate of 4-6 L/minutes. When the effluent contains adenosine disodium triphosphate (ATP) concentration of 0.03% or more, the sample is washed using RO water until there is no upper mechanical impurities and turbidity effluent. After washing process, the pH of the obtained stream is adjusted to 2-2.2 using 0.04 mol/L sodium chloride and 0.01 mol/L hydrochloride acid, in the flow rate of 6-10 L/minute. The pH of the concentrated salt solution containing 1 mol/L sodium chloride and 0.01-= mol/L hydrochloric acid, is adjusted to 3.5-3.8 and eluted. When the elution effluent ATP concentration is more than 0.38%, the eluate is decolorized. When the elution effluent ATP concentration is less than 0.38%, the collection is terminated. The pH of the resultant material is adjusted to 2.5-3.3 using hydrogen chloride, and ultrafiltered in an ultrafiltration membrane in presence of protein. The resultant material is added to knot crystal kettle, stirred in presence of 95 vol/vol.% ethanol. When there is appearance of white mixed cloud, the addition of alcohol is terminated, stirred for half an hour, and added to stock solution of alcohol. The temperature is then maintained for half hour, cooled to room temperature, maintained for 1 hour, and the crystallization solution is centrifuged. The resultant product is washed using ethanol, soaked in ethanol, dried, and pH is adjusted to 6-7. The wet product is then placed in a vacuum oven in the pressure of -0.10 MPa or less and the temperature is controlled at 40-42 degrees C. The qualified energy-saving adenosine disodium triphosphate product is added to preset batch mixer for 15-20 minutes, press-packaging inspection is carried out and stored.