Patients with kidney stones can eat black beans, because the main ingredient of black beans is a large amount of protein, there is no stone formation of raw materials will not aggravate the formation of stones. Kidney stone formation is mainly caused by improper diet and living habits, such as patients sitting for a long time to hold urine, do not do some strenuous exercise, or often eat some easy to form stones in the food, such as spinach, calcium tablets, seafood, beer, or often drink less water, it is recommended that the patients who have kidney stones eat more light food, avoid spicy and stimulating food, eat more fresh vegetables, fruits, more urination, to ensure that the daily urine output> 2500ml, and do some strenuous exercise. 2500ml, and at the same time do some strenuous exercise. Especially if the patients with kidney stones have obvious symptoms, it is recommended to actively go to the hospital for treatment to prevent and control kidney stones recurring urinary tract infections, and even affect the renal function of the situation.