The natural resources protection movement in the United States is the product of American social progress. In modern times, the rapid development of American economy has been at the expense of the environment to some extent, which has brought many adverse effects on the sustainable development of American people's lives. In the early 1930s, franklin roosevelt became the president of the United States. Protecting natural resources is listed as one of the important tasks of the government. Roosevelt used the federal power to promote and implement a series of policies and measures to protect natural resources, and achieved phased results, which set off the climax of the second natural resources protection movement since the beginning of the 20th century and laid the foundation for the rise of modern environmental protection movement in the United States after World War II.

Theodore roosevelt was the first American president to make environmental protection a domestic policy. As a conservationist, he formulated a series of policies and measures to protect natural resources during his tenure, and made some achievements, which laid the foundation for the sustainable development of American society and economy. Theodore roosevelt implemented many measures to protect natural resources, and enriched and perfected his environmental protection thought through these practices. Theodore also actively adopted the initiative of scholars to implement environmental protection, and gradually formed a set of ideological and theoretical system on environmental protection, creating new ideas and strategies for the federal government to implement decision-making. His idea of international cooperation to protect environmental resources has been popularized, which provides a reference model for later international cooperation in resource protection. This paper mainly expounds the background, formation process and influence of Theodore's environmental protection thought, and illustrates the concrete application of Theodore's environmental protection thought by discussing a series of environmental protection measures implemented during Theodore's administration. T-Bag has done fruitful and pioneering work in protecting the natural environment. His environmental protection thought had a great influence on the formation and development of American environmental ethics and even values, which still exists today. Starting with the early environmental damage in the United States, this paper expounds in detail the environmental damage and great waste of natural resources in the United States, and taking this as the starting point, expounds the historical background and reasons for its environmental protection thought. The environmental damage in the United States began with the development of the western region. At first, people didn't realize the seriousness of the shortage, so the article began to take it as the background of environmental protection in theodore roosevelt, USA. It also explains the changes of T-Bag's personal environmental protection thought from three aspects: the voice of promoting environmental protection in society is increasing day by day, that is, the efforts of early intellectuals; The dispute between two environmental protection concepts-nature protection and resource protectionism has basically made people have a clear understanding of the implementation of environmental protection; In addition, Theodore's personal factors played a decisive role, which explained the reasons for the formation of Theodore's environmental protection thought. Since T-Bag entered politics, New York State has implemented many environmental protection measures. Starting from T-Bag's love for nature, this paper expounds the development process of his environmental protection thought from germination to formation, development and perfection. This paper summarizes T-Bag's main thoughts on environmental protection, namely utilitarianism, sustainable development, state intervention and humanitarianism, and makes an objective evaluation of his thoughts. This paper proves that T-Bag has implemented effective protection measures with examples, and that T-Bag's environmental protection idea is feasible. Finally, the article expounds the influence of Theodore's environmental protection thought on the future environmental protection movement in the United States. In addition, T-Bag has spread this idea to the whole world, calling on people all over the world to pay attention to the environment and protect natural resources. China should also learn from this. While building socialism, we should pay attention to both sides, protect the environment and natural resources, and avoid taking the old road of "pollution first, then governance" in the United States. Drawing lessons from this environmental protection is also the practical significance of this article.