The invention discloses a traditional Chinese medicine compound sun-screening agent of flowers and an application of the traditional Chinese medicine compound sun-screening agent in cosmetics. The traditional Chinese medicine compound sun-screening agent of the flowers is prepared from the following raw materials in parts by weight: 5-13 parts of sweet osmanthus, 52-60 parts of lonicera confuse and 31-39 parts of coreopsis tinctoria flowers. Three raw materials are adopted as the components, so that the traditional Chinese medicine compound sun-screening agent of the flowers is relatively simple in composition, available in materials and low in price; the cosmetics prepared from the traditional Chinese medicine compound sun-screening agent of the flowers as an active component are free of irritability, free of thrill, free of an accumulated potential damage and free of dependence after long-term use; and the traditional Chinese medicine compound sun-screening agent is simple in preparation technology and easy to popularize and apply and industrial production is facilitated.