The prevention and treatment of mixed calcium oxalate and calcium phosphate stones are based on dietary control, drinking plenty of water and physical exercise. 1. Dietary control: to effectively prevent calcium oxalate and calcium phosphate mixed stones, the diet should avoid high oxalate food, such as spinach, tomatoes and so on. At the same time, the diet also needs to control the intake of sodium and protein, can effectively prevent stones. 2. Drink more water: increasing the amount of water can effectively promote the metabolism of body fluids, help reduce the chances of urinary stones, but also promote the flow of stones. 3. Physical exercise: regular physical exercise can promote fluid metabolism and circulation, help to improve the health of the urinary system, can play a role in preventing calcium-containing stones. If you want to effectively prevent calcium oxalate and calcium phosphate stones, you should be under the guidance of a doctor to comprehensive prevention and treatment.