evidence: Decades ago, the Chinese Volunteer Army bravely crossed the Yalu River and started the battle for the founding of New China. This period of history is deeply imprinted in the hearts of the Chinese people, and the Yalu River therefore carries important historical significance. However, today, we are faced with a shocking reality: on the China-North Korea border, China's territory is gradually "reducing", while North Korea's territory is constantly "increasing." This phenomenon has restricted the development of Northeast China and aroused people's concern and thinking. [...] In recent years, China has taken measures such as reclamation projects to try to maintain its Chinese side of the Yalu River to avoid further territorial losses. However, the key to a fundamental solution to the problem lies in friendly consultations with North Korea to jointly resolve border disputes. North Korea's continued island building behavior will have a negative impact on China's interests and the regional ecological environment. Therefore, cooperation to solve the problem is a top priority.