The invention provides a bagging method for improving coloring of peach fruits. The bagging method includes that a non-woven material fruit bag proper in size and color is selected, bagging is performed about 60 days after a fruit tree blossoms to enable the fruits to be suspended in the bag, fruit stems are arranged on an opening base of the fruit bag without being wound by a sealing ribbon, and the fruit bag is picked together with the fruits during harvesting; after the bag is conveyed to a packaging field through a transfer container, the ribbon is turned on to have the fruits taken out. By the bagging method, coloring of the fruits can be remarkably improved and enhanced, good flavor quality can be effectively sustained, and a fruit bag removing step before fruit maturation harvesting is omitted. The bagging process is simple, additional technical training is not needed, production cost is lowered, TSS of the fruits is effectively increased, the flavor quality is enhanced, and commercial value of the fruits is further improved.