A capsule and an oral liquid prepared from edible flower of plant or extract of the flower belong to the technology field of food and health food. The capsule and the oral liquid contain 5 to 98% of flower or flower extract, and 2 to 95% of adjuvants. The flower is selected from Rosa rugosa, Camellia japomica, lily, Osmanthus Fragrans, Flos Rosae Chinensis, Lonicera japonica Thunb, Flos Chrysanthemi, Rhododendron, Sophora davidii, bombax ceiba, jasmine, Flos Mume, Diranthus chinensis, lotus, forget-me-not, Flos Sophorae, Lavandula angustifolia Mill., snow lotus, Flos Gomphrenae, Flos Hibisci, Flos Celosiae Cristatae, Flos Puerariae, Fructus Auranti, Gardenia jasminoides, Herba Taraxaci, orchid, Flos caryophyni, Camellia, Flos rosae multiflora, Aglaia flower, Herba Menthae Spicatae flower, Leonurus Artemisia flower, Iris japonica Thunb., loquat flower, Flos Magnoliae, Flos Citri Sarcodactylis, Michelia figo, Juncus effusus Linn., pine pollen, poney, etc. The flower extract is extract of the flowers, and the adjuvants are selected from citric acid, sucrose powder, Mel, Aspartame, xylitol, dextrin, starch, vitamin C, and royal jelly. The capsule and the oral liquid have the advantages of convenient administration, high nutrition and health protection values, good taste, etc.