Abstract: The changes of growth rate, soluble sugar, organic acid, vitamin C, soluble solids, edible part and water content were studied in Jinqiu pear during its maturation. The results were as follows: The fruit growth rate have three peaks：the first when forty days after anthesis, the second when 82d after anthesis, the third when 131d after anthesis; the reducing sugar and non-reducing sugar content showed no difference on the whole before 110d after anthesis, but evidently trends of changes after 110d after anthesis, the reducing sugar content decreased gradually, the non-reducing content increased gradually; the content of organic acid increased gradually before 124d after anthesis , but decreased gradually after 124d days after anthesis; the change of vitamin C content showed a “V” shape curve, vitamin C content decreased gradually before 96d after anthesis , but increased gradually after 96d after anthesis. Soluble solids、 eatable part and water content increased gradually with the fruit maturing.