High blood pressure can be categorized as “vertigo” disease in Chinese medicine, and saffron is not generally used to treat high blood pressure. It has the effect of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), dispersing depression and opening up knots. Saffron is the upper part and stigma of saffron flowers in Iris family, it is flat in nature, sweet in taste, and belongs to heart and liver meridians. Saffron is not generally used in the treatment of hypertension, its main role is to cool the blood and detoxify the toxin (refers to the treatment of blood-heat and toxicity), blood circulation to remove blood stasis, dissipate depression and open the knot; clinically, it is mainly used for the treatment of menstrual cramps, amenorrhea, post-partum stasis abdominal pain, vomiting of blood, melancholy, chest and diaphragm constriction, fever fever, palpitations, trance, and so on. The adverse reactions and contraindications of saffron are not clear at present. Because this product can open the menstruation, blood activation effect is strong, so pregnant women should be used with caution. If there is a need to use saffron, it should be used under the diagnosis of traditional Chinese medicine practitioners, and should not be taken on its own to avoid causing adverse consequences.