In recent years, as the number of obese people in China is climbing, the number of hypertensive patients also followed, showing a rapid upward trend in the world, which has to say that the close relationship between obesity and hypertension, as if a twin sister, where there is obesity, hypertension will follow, and will also increase the overall cardiovascular risk and all-cause mortality. A survey showed that the high prevalence of hypertension is in the age group of 20 to 30 years old between the obese, their incidence of hypertension than the same age and normal weight people 1 times higher. Why is obesity an important cause of hypertension? It is because obesity is mainly due to the extra calories into fat deposition in the body, the body’s fat cells proliferation or volume increase, resulting in increased body weight, blood volume also increased, so that the burden on the heart to increase and vascular resistance increases, so it is easy to occur high blood pressure. The heavier the weight, the greater the risk of hypertension. A moderately obese person is five times more likely to develop hypertension than a person with normal body weight, and two times more likely to develop hypertension than a mildly obese person. China’s hypertension prevention and treatment guidelines state that the normal body mass index (BMI) for Chinese adults is 19 to 24, with a BMI of 24 being overweight and 28 being obese. The difference in BMI of the population has a significant effect on the blood pressure level and prevalence of hypertension. Blood pressure levels and prevalence of hypertension in our population were higher in the north than in the south, parallel to the difference in population BMI. 26% of hypertension cases in men and 28% of hypertension cases in women are caused by overweight or obesity. When obesity and hypertension coexist, the two “killers” cause a large number of patients with serious cardiovascular and renal damage, has become a modern society and even later, a serious threat to human health. A number of studies have confirmed that the treatment of obesity and weight loss, even for non-severe obesity weight loss of only 10% or so will make a considerable part of the patient’s blood pressure decreased significantly. Weight loss and antihypertensive effect is sometimes better than antihypertensive drugs, and can improve lipid metabolism and reduce the side effects of drugs. Severe obesity is often poor response to a variety of treatments, the mortality rate also increased, so the obese hypertensive patients should recognize the dangers of obesity as early as possible, try to change the dietary habits, weight loss is the first step in lowering blood pressure, I hope that you will get rid of obesity as soon as possible, to restore the health of the body.