With the rapid development of animal husbandry, agricultural production structure has been improved and rural economics been promoted. But the castoff produced in agricultural production, especially livestock dung, has caused environmental pollution. Dung de facto contains almost all of the essential nutrients for plant growth, however. Based on recycling economy, a study on the effect of manure on human life shall reap a sea of economic and ecological benefits because it emphasizes the importance of recycling and management of manure and meanwhile introduces how to reclaim the manure. Only by doing this can the resources be fully utilized and the environment less polluted in the meantime.