The invention discloses summer black tea with strong fragrance and a preparation method thereof. The preparation method comprises the following steps of picking of fresh leaves; withering, wherein theleaves are withered first under sunlight with the light intensity of 65000-88000 lux for 30-50 minutes, the thickness of the spread leaves is 2-3 cm, slight overturning is carried out 1-3 times, andthen the leaves are placed indoors for spreading, air-drying and withering for 16-18 hours; rolling; fermentation; drying to obtain the black tea. The preparation method is high in operability, simpleand easy to implement, withering under the sunlight is adopted in the withering step, the fragrance of the tea can be increased by using the combination of the optimal light intensity and the withering time, the defect that the summer tea tends to be bitter is overcome, and the quality of the summer tea is improved. The black tea made by means of the preparation method has strong fragrance for along time and a special floral and fruity aroma and tastes fresh and sweet.