The invention relates to a medicinal composition for the female postpartum breast care and a preparation method of the medicinal composition. The medicinal composition is prepared from the following raw materials: gray gum, linseeds, Hemigraphis procumbens (Lour.) Merr., garcinia cowa roxb, Corylus heterophylla Fisch. Ex Bess., pouzolzia zeylanica, Chinese artichoke, corn stigma, Japanese white birch bark, liquorice, honeysuckle flowers, mosla dianthera, rhizoma chuanxiong, lotus leaves, shaved cinnamon bark, fructus gardeniae, dandelion, humulus lupulus, cassia seeds, the seeds of cowherb, chitin, lemon extract, grape extract and zinc carbonate. The medicinal composition is prepared from the natural Chinese herbal medicines, is mild without irritation, can promote the blood circulation and lymph circulation, and also can stimulate the mammogenesis, so as to achieve the breast augmentation effect, and the medicinal composition protects the health of the female, nurses the skin, has the efficacy of improving the dry and rough skin, is obvious in effect, and is free of any side effect.