The invention provides a method for increasing the fragrance of black tea through abiotic stress. According to the method, tea leaves are under the condition of abiotic stress, hydrolysis of glucosidetype substances is furthest promoted, and further more floral type flavor components are formed, so that the black tea containing more floral type flavor components is made. The method has the advantages that high-glucoside-content tea tree fresh leaves are used as raw materials, through processing technologies of water stress conditions, damage stress and the like, abiotic stress conditions of water content, damage degree, oxidation degree and the like, of tea leaf processing links are accurately controlled, and the glucoside type substances are furthest degraded, so that more flower flavorsubstances are generated, and the made product has natural flower and fruit flavor characteristics. According to the method disclosed by the invention, additives of essence, spice and the like are notadded, and the consumption trend of safe and healthy black tea can be met.