How long is the border of China?

China's land border is more than 20,000 kilometers long. The coastline of Chinese mainland starts from the mouth of Yalu River between China and North Korea in the north and reaches the mouth of Beilun River between China and Vietnam in the south, with a total length of18,000 kilometers. It is the country with the longest land border and the largest number of neighboring countries in the world.

On the national border, there are many boundary markers as the symbol of the boundary between countries. China borders on North Korea, Russia, Mongolia, Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Pakistan, India, Nepal, Bhutan, Myanmar, Laos, Vietnam *** 14 in a counterclockwise order.

Extended data

Boundary markers will be erected next to national boundaries, and China boundary markers are often made of stones, wood, cement and other materials into rectangles. 1960 demarcated the China-Myanmar border, which was the first time that it was demarcated with neighboring countries after the founding of New China. The China-Myanmar border initiated the peaceful and friendly settlement of the border issue between New China and its neighbors, and consolidated and deepened the traditional "cell wave" friendship between the Chinese and Burmese people.

The boundary pillars in China can be classified as follows according to their types, and the numbering rules are as follows:

1. Single boundary marker: it stands directly on the land boundary line, and its marker number is a natural number.

2. Double boundary markers: erected on both banks of the boundary river, with the number of natural number plus 1 or 2.

3. Li Sanjie Monument: erected on the three banks where the boundary river meets or diverges from the inland river. The monument number is natural number plus 1 or 2 or 3.

Baidu encyclopedia-national boundaries

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