In recent years, with the frequent occurrence of natural disasters, environmental crises, and health crises, people have become concerned about the future of the urban space they live in, rethinking new landscape art to face the emerging uncertain challenges and explore sustainable strategies for urban development. The artistic garden festival under the theme of sustainability is an aspect of exploring the future development direction of landscape architecture. It uses natural space as the carrier and uses natural elements as creative inspiration to explore the various possibilities of future gardens from multiple levels, such as ecology, culture, art, horticulture, and technology. It is an experimental site and demonstration site for the latest garden design ideas, concepts, and technologies, which is also a perfect integration of nature and culture. Based on the research status and shortcomings of China’s artistic garden exhibitions, this paper uses literature review and case analysis research methods to sort out the specific characteristics of the planning, design, construction, and operation of the well-known foreign artistic garden festival under the theme of sustainability, as well as the construction strategies of exhibition gardens. It summarizes the sustainable construction approach of the whole life cycle. According to the opportunities and challenges of China’s current garden exhibitions, it summarizes its inspiration for China’s artistic garden festival and exhibition garden construction, providing experience and reference for the sustainable development of landscape architecture.