One aspect of the present invention relates to mulching paper (10), which covers cultivation land where crops are cultivated and is used for the purposes of weed control, moisture retention, and warmth. By being composed of pure vegetable raw materials, such as kenaf and coniferous pulp, the mulching paper (10) can be naturally decomposed, like paper, and thus the use of synthetic resin, which is a main cause of environmental pollution, can be greatly reduced, thereby contributing to saving the global environment, has excellent thermal insulation, ventilation and control performance, unlike existing vinyl mulching materials, and thus increases yield and quality due to smooth growth by controlling the temperature and moisture suitable for crop growth and pest control, and provides various mineral components to soil at the same time as being completely decomposed, and thus, due to its light weight and no need for collection, the labor force can be reduced, and soil can be reformed into fertile soil.