Abstract: "PV Exhibition Fasion Trend" is an industry project that was jointly built by Premiere Vision exhibition and global fashion suppliers. It can provide an effective reference for leather clothing industry from the perspective of fashion source in grasping the dynamic middle and high-end requirements in the international market. Meanwhile, it could conjointly guide ecological supply chain cooperation and product innovation solutions for fashion industry. This paper deeply investigated Premiere Vision exhibition in Paris and part of the trend exhibition in Shenzhen, and studied their exhibition strategies, development processes, presentation forms, color card contents, transmission modes, and the application concepts of cyclic ecologies. Then, the fashion trend concepts of sustainable leather such as "simplicity, frugality, abundance and restraint" in 2023-2024 autumn-winter was concluded. It is helpful for Chinese leather clothing enterprises to explore the potential market rules behind the fashion trends, and provide suggestions for the concrete exploration of sustainable fashion, high-quality development of domestic and foreign dual circulations, and the promotion strategies for international brands.