Objectives To investigate the effect for dietary guidance on calcium oxalate urolithiasis calculi ingredient analysis. Methods Seven hundred and 46 patients with calcium oxalate urolithiasis were analyzed by infrared spectrophotometry were given dietary instruction according to their respective calculi ingredients. Results Among 746 calcium oxalate urolithiasis cases, single component accounted for 28.7% (calcuim oxa⁃late monohydrate+calcium oxalate dihydrate).Calculi with mixed components accounted for 71.3%,mainly were calcium oxalate and carbonate apatite mixture components(64.5%). The average period of patient follow up was 11 months (3~24months).Among the 674(90.3%) calcium oxalate urolithiasis cases without recurrence,484 (71.8%) patients were followed and 190(28.2%) patients not followed our dietary instruction. While among the 72 (9.7%) cases with recurrence, there were 15(20.8%) patients followed and 57(79.2%) patients not followed our di⁃etary instruction. Conclusion The recurrence of calcium oxalate urolithiasis is closely related to dietary in⁃struction. After stone composition analysis, the pertinent dietary instruction has important clinical significance for finding the prevention of calcium oxalate urolithiasis.%目的：探讨结石成分分析在草酸盐结石患者饮食指导中的作用。方法：分析746例经结石成分分析确定为草酸盐结石的患者，给予相应的饮食指导。结果：746例草酸钙结石中单纯草酸钙结石(包括一水草酸钙和二水草酸钙)占28.7%，混合性结石564例占71.3%，主要为草酸钙与碳酸磷灰石的混合成分占64.5％；平均随访11个月（3~24个月），草酸钙结石患者无复发者674例(90.3%)，其中遵循饮食指导的484例(71.8%)，复发者未遵循饮食指导的57例(79.2%)。结论：草酸盐结石复发与饮食指导关系密切，依据结石成分分析结果，采用针对性的饮食指导对草酸盐结石的预防有重要的作用。
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