The diet and precautions for polycystic kidney patients are as follows: 1, the diet is based on low salt diet and high quality protein diet, polycystic kidney patients are prone to complications such as hypertension and renal failure, polycystic kidney patients should usually pay attention to low salt diet to prevent accelerating atherosclerosis and causing elevated blood pressure and high quality protein diet, such as intake of milk and eggs, to reduce the damage to the kidneys; 2, polycystic kidney patients should pay attention Avoid strenuous exercise to prevent the polycystic kidney from being strained or extruded and ruptured, causing complications such as bleeding and inflammation; 3. Polycystic kidney patients should also pay attention to regular review, such as kidney function, kidney ultrasound, blood routine and other related tests once every six months to a year to clarify the changes of their conditions.