OBJECTIVE： To evaluate the global existed diarrhea guidelines of children， and provide evidence and methodology reference for clinical practice and the formulation of diarrhea evidence-based guideline of children in China. METHODS： Retrieved from PubMed， Embase， CBM， CNKI， VIP， Wanfang databases and related websites， references included in studies were retrieved additionally from database building to Dec. 2017. The methodological quality of the guideline was evaluated by 2 researchers independently with guideline evaluation toolⅡ（AGREEⅡ）. ICC analysis was used to calculate the differences between the evaluation results of 2 researchers and analyze the difference of the guidelines. RESULTS： A total of 1 168 literatures were collected primarily， and 15 guidelines were involved finally， among which 3 guidelines were from USA， 2 from British， 2 from WHO， each one from Italy， Europe， India， Australia， Malaysia， New South Wales， South Africa and China， respectively. Of 15 guidelines， there were 10 evidence-based guidelines and 5 non-evidence-based guidelines； evidence levels of guidelines and the method of recommendation intensity were different. ICC of 2 researchers were higher than 0.75（P＜0.05）， indicating good homogeneity among them. The quality of 15 guidelines were not high enough， and the scores of included guidelines in the field of AGREEⅡin descending order were as follows： scope and purpose（84.44％），clarity of presentation （79.82％），stakeholder involvement（45.74％），rigor of development （41.18％）， editorial independence （36.39％） and applicability （33.89％）. Main prevention and treatment method recommended by guideline included that （1） prevention and treatment of dehydration was the key link in the treatment of children’s diarrhea； （2） guidelines generally believed continuous breastfeeding during rehydration could reduce the risk of dehydration in children； （3） zinc preparation was recommended to shorten the course of diarrhea； （4） antibiotics were used rationally， etc. CONCLUSIONS： The quality of global existed diarrhea guidelines of children should be improved. There is no comprehensive diarrhea evidence- based guideline of children in China， and there is a large discrepancy between the situation of pediatric diarrhea therapy in China and WHO standard； it is urgent to establish a standard treatment. It is suggested to formulate high quality pediatric diarrhea guideline in accordance with the national conditions of China， based on standards for international guideline report， comprehensively considering disease burden and characteristics of pediatric diarrhea in China.