Dried hawthorn in water has the effect of assisting in lowering blood pressure, but it cannot replace drugs to play a therapeutic role in lowering blood pressure. Hawthorn, when used as traditional Chinese medicine, is sour, sweet, slightly warm in nature, and belongs to the spleen, stomach and liver meridians. It has the efficacy of eliminating food and strengthening the stomach, promoting qi circulation and dispersing blood stasis, resolving turbidity and lowering lipids, and it can be used in conjunction with other medicines, such as Shenqu, for all kinds of dietary stagnation cases. It can be used in various dietary stagnation cases. People with excessive gastric acid secretion should take it with caution. Modern research has proved that hawthorn has the pharmacological effects of lowering blood fat and blood pressure. Therefore, when this product is used as a tea substitute, it can play a certain auxiliary effect of lowering blood pressure, but it cannot replace the therapeutic effect of drugs. Patients who need to use medication should do so under the guidance of a doctor to ensure that the medication is correct and effective.