Banana-pro-bag uses cradle-to-cradle design to regenerate a large number of discarded banana leaves and banana trees in the process of planting into banana paper bags and banana fiber ropes to protect the fruits. It not only solves the problem of huge agricultural waste, but also prevents fruit damage through the waterproof, high hardness and strong toughness characteristics of banana paper, and achieves an environmentally friendly cycle through recycled manufacturing. The ethylene secreted when bananas are ripe is naturally discolored by the test paper to identify the fruit maturity. The illustration reminds banana farmers of harvesting, deworming and other actions.