The experience of abolishing unequal treaties is a landmark in China’s treaty theory and practice. The primary practice of these treaties occurred in the 1910s and 1920s, the period surrounding the negotiation and signing of the Treaty of Lausanne. To some extent, this reflects China’s approach to and understanding of treaties at that time. During the 1910s and 1920s, we can observe the breakdown of traditional boundaries within public international law. China and other non-European countries were no longer viewed as “others” but were instead incorporated into the new international legal order. In modern times, China has gradually focused on studying and introducing mainstream international law, particularly applying this knowledge to understand treaties and resolving the challenges of unequal treaties. This marked a new starting point for China’s emphasis on international law and equal treaties.