The invention discloses a preparation method for litchi fruit wine aquavit. The preparation method comprises the following steps: extracting pectase from litchi pulp and carrying out pulping; adjusting acidity; specially selecting ferment dry yeast and adopting no SO2 during fermentation; producing non-neutral litchi aquavit with the pH value less than 7 and alcohol content between 60 and 70 percent through distillation; carrying out two-step distillation through a pot-type distiller, during which, temperature and litchi wine preheating and heating time are controlled while heating by coal gas to carry out distillation slowly; blending the litchi aquavit with original aquavit; obtaining a finished product of aquavit after wine jar storage, oak bucket storage, blending, freezing treatment, checkout and encapsulation; and finally, the aquavit generates inherent aroma by means of reaction between dissolved components from bucket timber and distillate components when the aquavit is stored in an oak bucket. The litchi fruit wine aquavit obtained by the preparation method has the advantages that the aquavit has golden yellow color, clarity, transparence, shininess and pure, full-bodied and delightful aroma of litchi, wine and the oak bucket; moreover, the aroma are coordinated, soft and natural, and the aquavit has mellow, moderate and smooth taste, mature feeling and complete wine body.