How many kilometers is the total length of the Great Wall in China?

21,196.18km

Due to the long history, most of the Great Walls in the early dynasties were incomplete, and the Great Wall built in the Ming Dynasty was relatively well preserved, so people generally refer to the Ming Great Wall, and the length of the Great Wall is also the length of the Ming Great Wall.

National Cultural Heritage Administration and the State Bureau of Surveying and Mapping jointly announced on April 18th, 29 that the Great Wall of Ming Dynasty starts from Hushan in Liaoning in the east and ends at Jiayuguan in Gansu in the west, and passes through 156 counties in ten provinces (autonomous regions and municipalities directly under the Central Government) of Liaoning, Hebei, Tianjin, Beijing, Shanxi, Inner Mongolia, Shaanxi, Ningxia, Gansu and Qinghai from east to west, with a total length of 8,851.8km.. After a trench of 359.7 kilometers, the natural natural barrier is 2232.5 kilometers.

On June 5th, 212, National Cultural Heritage Administration announced at the Juyongguan Great Wall in Beijing that after nearly five years of investigation, the total length of the Great Wall in China was 21,196.18km, including 43,721 Great Wall heritages such as walls, trenches, single buildings, closed castles and related facilities. This is the first time that China has scientifically and systematically measured the total length of the Great Wall. The investigation and identification of the Great Wall not only identified the length of the Great Wall in Ming Dynasty measured in 29, but also carried out the resource investigation of the Great Wall in Qin and Han Dynasties and other times.

Extended information:

The northern part of China has been restless since ancient times. The construction of the Great Wall in Wan Li began in the Spring and Autumn Period and the Warring States Period, with a history of more than 2, years, especially in the Qin, Han and Ming Dynasties.

During the Tang Dynasty, the Turks in the north were pacified and no longer a threat, and the Great Wall was not built for 3 years. The cession of sixteen prefectures in the late Jin Dynasty made it meaningless to build the Great Wall in the later Song Dynasty. The rulers of the Yuan Dynasty were Mongols, and only some passes were repaired, which only played the role of checking passers-by and serving as a post station for trade routes.

similar to the yuan dynasty, the Qing dynasty did not build the great wall until its demise. Therefore, only the first phase of the Ming Dynasty actually restored the Great Wall, which is also the majority of the remains seen today. In the 2th century, only the Battle of the Great Wall barely participated in a battle again. After the development of long-range hot weapons and the subsequent Soviet/Russian air force and guided missiles, the Great Wall of Wan Li has completely lost its military function, and the northern defense work of modern China has been replaced by reconnaissance satellites and radar networks.

Reference: Baidu Encyclopedia Great Wall.