The present invention relates to a method for manufacturing grape juice with improved preference and grape juice manufactured thereby and provides the grape juice which improves the preference with differentiated flavor and taste by adding further blueberries, sponge gourd fruits, and sap of the sponge gourds to grapes, a main ingredient, and extracting the grape juice together, and thereby has an enhanced health improvement effect. The present invention comprises: a grape preparing step for preparing grapes of which the stem is removed after harvest (S10) a blueberry preparing step for freeze-drying and storing blueberries after harvest (S20) a sponge gourd fruit and sap preparing step for preparing the fruits and sap of sponge gourds by harvesting and cutting the fruits of the sponge gourds, getting the sap, and then putting them into a container (S30) an ingredient mixing step for obtaining 100 wt% of a mixture by mixing 80 wt% of the grapes, 10 wt% of the blueberries, 8 wt% of the sponge gourd fruits, and 2 wt% of the sap of the sponge gourds (S40) and a boiling and concentrating step (S50) for firstly boiling the mixture at 80-120°C for 4-6 hours, removing impurities through a first filtering process, secondarily boiling the extract after the first filtering process at 80-120°C for 2-3 hours for concentrating the extract, and removing impurities through a second filtering process.COPYRIGHT KIPO 2014[Reference numerals] (S10) Step for washing harvested grapes and removing stems (S20) Step for washing and freeze drying harvested blueberries (S30) Step for washing harvested sponge gourds fruits, then cutting them and obtaining the sap thereof (S40) Step for mixing the grapes, blueberries, sponge gourds fruits, and sponge gourds sap (S50) Step for boiling and concentrating a mixture (S60) Step for cooling and removing tartaric acid (S70) Step for finishing a product by vacuum packing본 발명은 기호성을 향상시킨 포도즙의 제조방법 및 그 방법으로 제조된 포도즙에 관한 것으로서, 주재료인 포도에 블루베리와 수세미 열매 및
