In recent years, the environmental situation in Southeast Asian countries has attracted widespread attention. With rapid economic development, these countries are facing a series of environmental challenges while also making positive efforts in environmental protection.On the one hand, environmental issues are becoming increasingly prominent. The rapid population growth and industrialization have led to severe environmental degradation. Air pollution is a serious problem in many cities. For example, in some industrial areas, factories emit large amounts of waste gases, causing air quality to decline. Water pollution is also prevalent. Some factories discharge wastewater directly into rivers and lakes, polluting water resources and threatening the survival of aquatic life. In addition, deforestation is occurring at an alarming rate. In order to pursue economic benefits, large areas of forests are being cut down, leading to the loss of biodiversity and soil erosion.However, on the other hand, Southeast Asian countries are actively taking measures to address environmental problems. Many countries have realized the importance of environmental protection and have formulated relevant policies and laws. For instance, Singapore, with its rich experience in environmental governance, has achieved significant improvements in air quality and water resource utilization through strict regulations and efficient management. It has also developed policies such as the "Singapore Green Plan 2030" to promote urban greening and sustainable living.Indonesia, as the largest archipelagic country in the region, is facing serious environmental challenges but is also taking action. Multiple departments are responsible for environmental management, and policies on sustainable development and water resource management have been formulated. Although its environmental legal system needs to be updated, it is committed to promoting energy transformation and developing a green economy.Vietnam, with its rapid economic development, is also paying attention to environmental protection. The Ministry of Natural Resources and Environment is leading the implementation of a series of environmental policies, including the "National Strategy on Environmental Protection for 2020 with a Vision to 2030." However, the implementation of these policies is hindered by issues such as policy inconsistency and decision-making methods.Thailand has a diversified economy and is facing various environmental issues. Its environmental management system consists of multiple institutions, and environmental policies are distributed in relevant plans. It is committed to protecting natural resources and is striving to achieve net zero emissions in the future.Malaysia, which has a good economic development, is also facing environmental challenges. The Ministry of Energy, Science, Technology, Environment and Climate Change and other departments are responsible for environmental management, and environmental policies covering various aspects such as environmental education and natural resource protection have been formulated. It is focusing on promoting a circular economy in the future.Myanmar, which is in a period of economic transformation, is rich in resources and is also committed to environmental protection. The Ministry of Natural Resources and Environmental Conservation is responsible for environmental management, has signed many environmental protection conventions, and has formulated policies such as banning the export of logs.In addition to the efforts of individual countries, regional cooperation is also strengthening. The Association of Southeast Asian Nations (ASEAN) is promoting climate governance through the "Cognitive Community" approach, including establishing relevant institutions, issuing declarations and action plans. It is committed to raising public awareness of climate change and taking comprehensive measures to address it. Moreover, the "ASEAN Agreement on Transboundary Haze Pollution" aims to reduce forest fires and haze problems through information sharing, technical cooperation, and capacity building.In the field of green finance, Southeast Asian countries are also exploring new paths. For example, more and more countries are promoting the development of green finance to support environmental protection projects. By providing financial support for renewable energy projects, energy-saving projects, and environmental protection projects, green finance plays an important role in promoting sustainable development.In conclusion, Southeast Asian countries are facing severe environmental challenges, but they are also actively taking measures to address these issues. Through the formulation and implementation of policies and laws, strengthening environmental management, promoting regional cooperation, and developing green finance, these countries are gradually moving towards the path of sustainable development. However, there is still a long way to go, and continuous efforts are needed to achieve a balance between economic development and environmental protection. Only by working together can we ensure a beautiful and sustainable future for Southeast Asia.