Tiananmen Square was founded in the 15th year of Yongle in Ming Dynasty (14 17). Its original name is "Chengtian Tianmen", which means "Chengtian Qiyun" and "Being ordered by Heaven". At that time, Tiananmen Square was a five-hole archway with yellow tile cornices, three floors and red painted gold nails, which was dazzling. A straight central imperial road, through the end door, goes straight to the meridian gate of the main entrance of the palace. On both sides of the Imperial Road, it was built according to the traditional organizational system of Zuozong Temple and Youzhou. There are red walls on both sides of Royal Avenue, which extend to the outside of Tiananmen Square and connect with two corridors to form a closed palace square. On the periphery of the square, the civil service office is on the left and the military attache office is on the right, which fully shows the grand momentum of centralization.

In the eighth year of Shunzhi in Qing Dynasty (165 1), it was rebuilt as Tiananmen Square, which means "taking orders from heaven" and "keeping peace and governing the people". It has a white marble base of Mount Sumi, a tall and gorgeous wall platform, two-story double-eaves building, nine rooms in the east and west, and five rooms in the north and south, symbolizing the ninth five-year plan of imperial power. With a height of 33.7 meters, there are 36 Zhu Hongling flowers, 60 pillars that go straight into the sky, gold-plated colorful brocade of "Shuanglong Seal", dragon algae wells on the ceiling, and a moon-holding and star-holding pattern composed of an octagonal palace lantern of 450 kilograms and 16 hexagonal palace lanterns weighing 350 kilograms each, which makes the whole hall solemn and magnificent. The Jinshui River opened in front of the door is full of flowing water, and seven exquisite white marble bridges are set up. The bridge deck is slightly arched, and the bridge is like a rainbow, forming a beautiful curve. On the east and west sides of the south of the bridge, Bai Yushi Huabiao stands tall, with clouds circling the dragon plate, which is very majestic. In front of the palace square, it is closed, and the civil and military officials are dismounted, and ordinary people are not allowed to enter. As soon as they saw it, they committed the felony of "spying on the palace gate" and killed without forgiveness. During the 500 years of Ming and Qing Dynasties, Tiananmen Square was the place where the new emperor ascended the throne, the empress conferred titles and issued imperial edicts to the world. It is also the place handed down by the emperor's golden palace and the only way for the emperor to go to the ancestral temple. For ordinary people, it is a forbidden place to keep people away. Until the Revolution of 1911 (19 1 1), the closed doors on both sides of the Palace Square naturally collapsed, and Chang 'an Avenue became the main road with smooth traffic. Since then, the May 4th Movement, the December 29th Movement, founding ceremony, the May 4th Movement and other major historical events in the history of China's revolution have all taken this as a stage and performed brilliantly here. Especially after the founding of New China, Tiananmen Square became a symbol of the great motherland, and the newly expanded Tiananmen Square became the largest and most magnificent People's Square in the world. Tiananmen Square is a magnificent building on the earth, a masterpiece of ancient architectural art, and an image embodiment of feudal hierarchy: the most prominent bridge deck is carved with a faucet in the middle, which only the emperor can pass, and it is called the "imperial bridge"; There are two bridge decks carved with lotus stigmas on the left and right, which only the prince can cross. It is called "Wang Gong Bridge". Only ministers of civil and military affairs with three or more qualities can pass on both sides, which is called "grade bridge"; The farthest ordinary relief stone bridge is the bridge where officials and soldiers below Grade 4 leave, and it is called "Gong Sheng Bridge".

Since June 1987 1 1, Tiananmen Square has been officially opened to Chinese and foreign tourists. Before that, few ordinary people could get close to Tiananmen Square like today, appreciate its magnificent posture, and freely hold the railings and overlook the magnificent panorama of the square like the countryside in those days. Therefore, since its opening up, it has attracted thousands of Chinese and foreign tourists to climb the stairs and swim.