The present invention relates to a method for preparing a beverage using a dropped pear, which has been devised so that the economic utility of the dropped fruit is developed, and, more particularly, to a method for preparing a beverage using a dropped pear concentrate, a stone cell, a gelling agent, and a strawberry and a beverage using a dropped pear concentrate, a stone cell, a gelling agent, and a strawberry and prepared by the method for preparing the same including: a pear concentrate preparation step including a process of preparing juice by washing and juicing the dropped pear and a concentration process of concentrating the juice to 69 brix a stone cell preparation step including a process of mixing the dropped pear and 95% methanol with each other at a weight ratio of 1 : 3 after washing and grinding the dropped pear and then homogenizing the mixture, a sugar element removal process of removing a sugar element by performing filter paper-based decompression filtering on the homogenized pear, a process of mixing a solid not filtered and left on the filter paper after the decompression filtering with one strong acid selected from the group consisting of hydrochloric acid, sulfuric acid, and nitric acid at a weight ratio of 1 : 5 and then stirring and shaking the mixture for one hour, a process of removing the residual sugar element by performing decompression filtering again on the shaken object, mixing the solid not filtered during the decompression filtering with one strong alkali selected from the group consisting of sodium hydroxide, potassium hydroxide, and calcium hydroxide at a weight ratio of 1 : 10, and then performing protein removal by stirring the mixture for 30 minutes and filtering it, and a process of drying the solid not filtered and left on the filter paper after the protein removal in a pyrostat with a temperature of 30 to 60 degrees Celsius and a mixing step of adding the stone cell, the pear concentrate, the gelling agent, and the strawber
