Abstract: Baishui county is the best apple Production areas of Shaanxi provence, Bagged apple production accounts for 65.54%, Bagging is one of the key technologies in the production of pollution-free apple, Study the bag technology has the important instruction significance to the apple production. The project has carried on the investigation to the Baishui County apple bagging situation, And the research of the three kind of fruits bags to the apple outward appearance quality, the intrinsic quality, fruit sunspot sickness had the situation, and the benefit. The findings indicated: Most Fruitgrowers of baishui county use Dual monolayer Inferior bag and Double monolayer Inferior bag, Bagged apples can significantly improve the Smooth, Coloration and appearance quality, Reduces the Vc content, Increase the rate of Black spot disease the rate of Black spot disease is lower with the double-decked tricolor high quality paper bag apple and the rate of Black spot disease is higer with Single-layer double color inferior paper bag, Bagging can significantly increase the economic benefits of apple production.