Abstract: Based on the data of medlar sampling in Northern China,the quantificational relationships between saccharide content of medlar and soil nutrient,and meteorological factors were analyzed.The results show that saccharide content of medlar is determined by both soil nutrient and weather condition.Main factors which affected saccharide content of medlar include alkaline hydrolysis N,available K,pH and organic matter in soil,as well as weather condition during madlar fruits forming stage such as maximum temperature,minimum temperature,sunshine hours,rainfall and accumulated temperature,etc.Compared to soil nutrient,the weather factors have greater effect on saccharide content of medlar.