Abstract:A large number of marigold straws are idle, resulting in a waste of straw resources. It is also a major problem of agricultural environmental pollution in the improvement of human settlements, which has a serious impact on the comprehensive promotion of improvement of human settlements. This article aims to explore the feed utilization technology suitable for mutton sheep breeding and comprehensively promote its use by conducting a series of comparative experiments on marigold straw processing and feeding methods. If marigold straw resources are widely used in the breeding industry, we will gradually explore and establish a virtuous cycle model of "marigold feed mutton sheep feeding organic fertilizer marigold" to achieve the integrated development of the two major industries of marigold and grass animal husbandry. This can achieve sustained and stable growth in agricultural production and farmer income, and achieve the organic unity of ecological, economic and social benefits. It is of great significance in promoting the improvement of human settlements and the improvement of agricultural nonpoint source pollution, the highquality catchup development of grass and animal husbandry, and the development of the marigold industry. To this end, through research and information review, I discussed the utilization value of marigold straw in the breeding industry, straw preparation, processing and feeding technology, and summarized the feed utilization technology of marigold straw that is suitable for mutton sheep breeding.