Recently, under the guidance of the State Administration of Cultural Heritage, sponsored by the Chinese Academy of Cultural Heritage, and co organized by the Archaeological Research Center of the State Administration of Cultural Heritage, the "Major Achievements Exhibition on the Protection and Utilization of Cultural Relics in the New Era" was held in Beijing, systematically sorting out the major practices and achievements of the Chinese Academy of Cultural Heritage since the 18th National Congress of the Communist Party of China. In the "International Exchange and Cooperation" module, as an important project to promote people to people and cultural exchanges and lay a solid foundation for the people, cultural relics protection and foreign aid has become a highlight of the attention of visitors. Since the 18th National Congress of the Communist Party of China (CPC), new achievements have been made in the protection and inheritance of China's cultural heritage. A series of foreign aid projects for the protection of cultural relics have been steadily carried out, which have been highly praised by the recipient countries and the international community. As a "national team" for the research and protection of Chinese cultural heritage, the Chinese Academy of Cultural Heritage has undertaken several major projects entrusted by the Ministry of Commerce and the State Administration of Cultural Heritage. The project of assistance to the conservation and restoration of Angkor's historic site Chajiao Temple in Cambodia, which was officially started in November 2010 and passed the completion acceptance in 2018, the project of assistance to the restoration of historical and cultural sites in Khwarazimu Prefecture in Uzbekistan, which was started in April 2017 and passed the completion acceptance in December 2019, the project of assistance to the restoration of the nine storey temple in Nepal's Kathmandu Duba Square, which was officially started in August 2017 and completed in July 2022, In addition, the rescue and maintenance project of Kolumbar Ancient Pagoda in Mongolia, and the post disaster rescue project of Pugan Buddha Pagoda in Myanmar... Xu Yan, Vice President of the Chinese Cultural Heritage Research Institute, has been involved in cultural relics assistance since early 2013, and the team has successively participated in and witnessed several cultural relics assistance cooperation projects between China and countries along the "the Belt and Road", and personally felt the hard work and positive impact of the Chinese cultural relics protection team over the years. "Each cultural relic building has a unique historical and cultural background. Before the implementation of each project, the Chinese cultural relics protection team will fully investigate and investigate, calm down to consult data, communicate with local experts, and find the most suitable and effective protection and restoration plan." Xu Yan said, "In the process of exploration, we can also find that many things are similar in the 'the Belt and Road' countries, such as the Islamic style buildings in Uzbekistan and the mosques in Kashgar, Xinjiang, China, and the wooden buildings in Nepal are similar to the buildings in Tibet, China, in terms of plane pattern and local practices. Our experience in repairing and maintaining grottoes and stone buildings is also helpful for the repair of grottoes and temples in Cambodia ... "He said that China, as a country with the highest number of cultural relics and culture in the world heritage, has a vast territory and abundant resources, many types of cultural relics, and rich experience in protection, which has provided a foundation and confidence for the work of cultural relics aid to foreign countries. The Chinese cultural relics protection team has the ability and confidence to do a good job of cultural relics assistance. At the same time, the process of getting familiar with and completing each project is also a process of continuous learning and enriching our experience and databases. It is reported that in the restoration work, the Chinese cultural relics protection team pays attention to the combination of the internationally recognized protection concept and the cultural relics protection principle with Chinese characteristics, while taking full account of the local actual situation and regional characteristics, and innovating the process and method according to local conditions, so that the original historical information and traces of the times of the cultural relics can be effectively protected. For example, the protection and restoration project of Chajiao Temple strictly follows the minimum