The 24-hour urine protein is no more than 0.15g for normal people, if the 24-hour urine protein of diabetic patients is 1.7g, it is more serious and need to consider diabetic nephropathy. For diabetic patients, if long-term poor glycemic control, it will cause damage to the microvessels of the kidneys, which will damage the glomeruli, resulting in protein in the urine, which is diabetic nephropathy. Therefore, diabetic patients presenting with 24-hour urine protein of 1.7 grams is more serious and needs to be highly suspected of diabetic nephropathy. Therefore, diabetic patients should actively monitor their blood glucose to keep it stable and prevent or delay target organ damage. The appearance of 24-hour urine protein of 1.7g needs to go to the hospital in time, under the guidance of the doctor to carry out appropriate treatment to prevent or delay the emergence of nephrotic syndrome, renal insufficiency, uremia and so on.