Urolithiasis is a common and frequent disease worldwide, and the incidence rate is currently as high as 4% to 13%, and is on the rise. In recent years, with the development of modern medical equipment, through the shock wave lithotripsy / minimally invasive percutaneous nephrolithotripsy, ureteroscopy lithotripsy, etc., so that more than 90% of patients do not need traditional open surgery to remove stones. However, there is a high rate of postoperative recurrence of stones, ranging from half a month to six years after treatment, with more than 80% of patients experiencing recurrence. Studies have shown that the incidence and recurrence of stones, as well as their composition and structure, are closely related to geography, age, occupation and diet. Measurement of stones, especially microstructural analysis, can provide a basis for finding the cause of stones, prevention and treatment. For example, by analyzing stones, it is possible to increase the effectiveness of lithotripsy and to reduce the damage to normal tissues. Determination of the composition of stones, looking for its relationship with human hair, soil, water composition, etc., which is conducive to finding the cause of disease. Due to the different composition of the stone its cause and formation mechanism is different. For example, the main component of urinary stones is calcium oxalate, some people believe that calcium oxalate stones are mostly due to the geographical environment, water quality conditions, dietary habits and calcium metabolism abnormalities and so on. Of course, oxalic acid is a necessary condition for the formation of calcium oxalate stones, high oxalic acid diet and lack of water in the body will directly lead to calcium oxalate precipitation. In addition, excessive intake of magnesium, phosphorus, calcium and cholesterol will accelerate the formation of calcium oxalate. Therefore, these patients should pay attention to drinking more boiled water to keep the body not lack of water and step drink strong tea, beer and coffee and other drinks containing high oxalic acid; eat less spinach, onions, potatoes, tomatoes, persimmons, apples, oranges, grapes and other high oxalic acid vegetables and fruits; eat more citric acid, pyrophosphate and vitamin C and other calcium oxalate formation of calcium oxalate has an inhibitory effect of the food. The formation of calcium phosphate stones is mostly related to poor urinary flow and bacterial infections Therefore, patients with this type of stones should pay attention to urinary tract infections, which can be prevented by medication. At the same time, the formation of calcium phosphate will accelerate the precipitation of calcium oxalate, which forms the two coexist in a stratified distribution of uroliths. This type of patients in addition to pay attention to dietary control, should be added to take potassium citrate and strontium citrate and other calcium-containing kidney stone prevention and treatment of calcium-containing kidney stones uric acid and ammonium urate and other stones with purine metabolism abnormalities and so on. Therefore, such patients should eat less animal offal, seafood and other high purine-containing foods. In addition, beer in addition to high oxalic acid, purine is also very high, suffering from urolithiasis should not drink more. At the same time should be served allopurinol and other drugs. Pediatric bladder stones are mostly caused by malnutrition, should strengthen the nutrition. If due to congenital urological diseases such as esters, alcohols and proteins and other foreign objects into, can cause this as the nucleus of other components around its precipitation of mixed stones, should be comprehensive treatment. Therefore, the understanding of stone composition for patients to further comprehensive treatment. Reduce the recurrence rate has important significance. At present, foreign common is the application of infrared spectroscopy to determine the composition of urinary stones. Infrared spectroscopy is an ideal method for the qualitative and quantitative determination of stones. Qualitative analysis, sample spectra and pure material standard spectra, in the wave number of 4000 ~ 400cm- 1 range, can confirm the content of the mixture of 5% ~ 10% of the components. The spectra of mixed stones may overlap, but as long as part of the non-overlap can still determine its composition, so that the physical and chemical properties of similar mixtures can be analyzed. Quantitative determination of the general use of the working curve method, internal standard method, for the position of the characteristic band is similar to the components, the standard ratio method to estimate the composition of the sample content. Infrared spectroscopy can reflect the structural characteristics of the stone and the content of the components, easy to operate, rapid analysis, can be analyzed on the stone of crystalline or amorphous substances, organic or inorganic components, the use of samples less. Importantly, this method is a non-destructive analytical method that can directly determine the composition of the sample. The Infrared Spectrum Stone Analyzer was introduced to the Urology Lithotripsy Unit in 2011. The Infrared Spectral Stone Analyzer is a physical analytical method to analyze stones. Its principle of detection is based on the characteristics of the absorption peaks of the sample in the infrared light region to determine the structure and composition of the compound. Its advantages are: accuracy, speed and convenience. Stone specimen can be obtained by surgery, lithotripsy or self-discharge, the specimen taken only 1mg, the analyzer can be based on different texture of the stone absorption of infrared wavelengths of different components of the human body stones, infrared spectroscopy stone analyzer to analyze the stones to determine the composition of stones, according to the structure and composition of different stones can be targeted to different methods of prevention and treatment, so as to provide reasonable dietary structure recommendations for the patient The suggestion of dietary structure can greatly reduce the recurrence rate of stones.