There is only one earth for human beings, and the earth is the ecological environment on which all of us live. As a qualified college student, it is our unshirkable responsibility to protect the ecological environment around us and make some contributions to the construction of the motherland. Ecological civilization is a form of human civilization. It aims at respecting and maintaining the ecological environment, based on sustainable development, and focuses on the sustainable development of mankind in the future. The construction of ecological civilization is related to the well-being of the people and the future of the nation. Faced with the severe situation of tight resource constraints, serious environmental pollution and degraded ecosystem, we must establish the concept of ecological civilization of respecting nature, conforming to nature and protecting nature, put the construction of ecological civilization in a prominent position, and integrate it into all aspects and the whole process of economic construction, political construction, cultural construction and social construction, and strive to build a beautiful China and realize the sustainable development of the Chinese nation. Adhere to the basic national policy of resource conservation and environmental protection, adhere to the policy of giving priority to conservation, protection and natural restoration, make efforts to promote green development, circular development and low-carbon development, form a spatial pattern, industrial structure, production mode and lifestyle of resource conservation and environmental protection, reverse the deterioration trend of the ecological environment from the source, create a good production and living environment for the people, and contribute to global ecological security. As a qualified college student, we can start from some small things and do something within our power for ecological construction.