Kidney stone patients can eat sweet potatoes, but should be moderate. The formation of kidney stones is related to inborn factors such as high oxaluria, abnormal metabolism of high uric acid cystine, abnormal inborn structure of the kidney, and more importantly, it is due to acquired poor dietary structure and lifestyle habits, such as drinking too little water, drinking strong tea or coffee for a long period of time, consuming too many leafy greens, excessive sugar intake, excessive calorie intake, and less exercise. Sweet potatoes are rich in protein, fat, polysaccharides, minerals, fiber and so on, which can provide nutrients for the human body, and kidney stone patients can eat in moderation. However, sweet potatoes contain more sugar, one of the causes of kidney stones is too much sugar intake, therefore, kidney stone patients can not eat too much sweet potatoes. In addition, kidney stone patients should try not to eat food containing more oxalic acid and purine, such as spinach, soy products, seafood, animal offal, beer and so on. Usually should develop good eating habits, should not eat, at the same time, increase the amount of water and exercise, can promote the discharge of stones.