This is not only a summary of the significant achievements in China's ecological civilization construction since the 18th National Congress of the Communist Party of China, but also provides scientific guidance for continuing to promote ecological civilization construction in the new journey. 1. Properly handling the relationship between high-quality development and high-level protection requires us to deeply grasp the dialectical unity between economic and social development and ecological environment protection in promoting ecological civilization construction. The development practice of China in the new era has proven and is continuing to prove that high-level protection is an important support for high-quality development, and relying on high-level protection can achieve high-quality development; High quality development reflects the effectiveness of high-level protection, and high-level protection reflects the requirements of high-quality development. High quality development and high-level protection have unity and consistency in essence and objectives, and they complement and complement each other. Since the 18th National Congress of the Communist Party of China, China has taken the construction of ecological civilization as a fundamental plan related to the sustainable development of the Chinese nation, and has carried out a series of groundbreaking work. The construction of ecological civilization has undergone historical, transitional, and global changes from theory to practice. However, promoting high-quality development still faces many dilemmas or even multiple challenges. The construction of ecological civilization is still in a critical period of pressure accumulation and burdensome progress. We need to plan development from the perspective of harmonious coexistence between humans and nature, strengthen forward-looking thinking, overall planning, strategic layout, and overall promotion, and correctly handle the relationship between high-quality development and high-level protection. On the one hand, through high-level environmental protection, we continuously shape new driving forces and advantages for development. We should firmly establish the idea that Clear waters and green mountains, and strengthen the strategic commitment to ecological environment protection; Strengthen the prevention of ecological environment sources, strictly manage ecological environment access through measures such as ecological environment zoning control and environmental impact assessment, and ensure the quality of development and the bottom line; We will deepen the implementation of Megaproject for ecological and environmental protection, vigorously promote the construction of environmental infrastructure, and vigorously develop ecological and environmental protection industries. On the other hand, we should focus on building a green and low-carbon Carbon cycle economic system, effectively reduce the cost of resources and environment for development, and continue to enhance the potential and stamina of development. We need to accelerate the adjustment of industrial structure, energy structure, transportation structure, land use structure, and green transformation and upgrading, achieve coordinated efficiency reduction in pollution and carbon reduction, and shift from high-quality development to both high-quality development and high-quality development incentives; Promote clean, low-carbon, safe and efficient utilization of energy, and support the transformation of innovative achievements in green and low-carbon technologies; By increasing financial investment, developing green finance, ecological compensation mechanisms and other policy tools, we will promote the construction of ecological and environmental protection projects and the development of environmental protection industries, assist in high-level protection, and guide the formation of green development methods and cultivation