Abstract: Reducing sugar、soluble sugar、starch、all kinds of mineral nutritions（K、Ca、Mg、Cu、Fe、Mn、Zn） and mean fruit weight were measured and analysed,spraying the different concentration of 6-BA＋K2SO4 on the＂Changfu 2＂apple trees.The results were as follows：（1）The result showed that the treatments could improve the contents ofmineral nutritions in the fruits.Treatment 5 was the best among all thetreatments.The contents of mineral nutritions in the fruits except Ca with alltreatments,were remarkably higher than those of the control.The contents of K、Ca、Mg、Fe、Mn in the fruits of the treatment 5 were the highest among allthe treatments and the control.（2）The significant analysis for total sugar,soluble sugar,reducing sugarin the fruits in two years showed that the contents of total sugar,solublesugar,reducing sugar in the fruits of the treatment 5 were the highest and thoseof the control is the lowest,those of all the treatments were remarkably higherthan those of the control.The result of the treatment 5 was the best.（3）The result of mean fruit weight revealed：all the treatments couldremarkably improve the fruit weight.The different reached to the level of themost significance.（4）The correlation analysis between mineral nutritions and total sugarrevealed that during maturation period,there were the positive correlationbetween the contents of Mg、Fe、Zn in the fruits and the content of total sugarin the fruits.For the treatment 5,the positive correlation reached to the levelof significance.There were the negative correlation between the contents of K、Ca、Cu、Mn and the content of total sugar in the fruits.（5）The correlation analysis between all mineral nutritions,total sugarand mean fruit weight revealed that there were the positive correlation betweentotal sugar and mean fruit weight.For all the treatments,the positivecorrelation reached to the most level of significance.The correlation of thetreatment 5 was the closest among all the treatments,the correlation coefficientwas 0.9694.The correlation of the control didn＇t reach to the level ofsignificance.There were the negative correlation between the most of mineralnutritions in the fruits and mean fruit weight.The negative correlation betweenthe content of Cu in the fruits and mean fruit weight reached to the most levelof significance for all the treatments and the control.The negative correlationbetween the content of Ca in the fruits and mean fruit weight for the treatment4 reached to the most level of significance.The negative correlation betweenthe content of Fe in the fruits and mean fruit weight for the treatments 1-4 and the control reached to the most level of significance.