Renal stones have 4 groups (calcium, struvite, acid uric, cystine) Method: Qualitative of the chemical component Results: Qualitative analysis the chemical component of 353 cases of renal stones, We noticed Uric acid: 5.38%, Pure calcium oxalate: 30.59%, Mixed calcium oxalate and Phosphate: 33.71%, Struvite: 30.31%.