The idea of building the Paris subway originated from 1845. Railway companies prefer to build subways by connecting suburban railway networks, while the municipal government hopes to build small and medium-sized railways with different systems in the city. The two sides argued for decades until the traffic situation in Paris continued to deteriorate and the World Expo 1900 approached, and finally the municipal government's plan was adopted. Line 8 is a part of the first phase of the Paris Metro Network Project.

The earliest Line 8 is planned to connect southwest Paris with the city center. According to the past experience of Line 7, two branch lines will be opened to Ottemen and Saffron respectively. On July 19 13, the section between Charles Michel Station (then known as the beautiful Gorenel Station) and Opera Station was completed and opened to traffic. On September 30th of the same year, Ottemen Station and beautiful Gorenel Station were opened to traffic. The section open to traffic includes two river-bottom tunnels. Based on the experience of constructing river-bottom tunnel on Line 4 at that time, immersed tube method was adopted in Line 8 tunnel. Although it was opposed by public opinion, it was carried out as scheduled, but the completion date was delayed because of the flood of 19 1922. The authorities began to study the east extension of Line 8, and its section is basically the same as it is now. Due to the small land acquisition area and complicated geology, the two lines were finally designed to be parallel up and down. On June 30th, 0928, the line extended eastward for one stop to Li Sailiu-Duro Station. Considering the future traffic flow, the length of this station is105m, which is far more than the previous station's 75m. The upcoming colonial exhibition has accelerated the eastward extension of Line 8. On July 27th, 2007, according to the needs of passenger flow, the subway network in southwest Paris was greatly adjusted: the section between lamotte Station and Ottemen Station was merged into Line 10, which extended southward to Barra Station. 1942 10.5 According to the previous extension plan, the line will be extended to Charenton School Station in the southeast. After the war, Afuju, a satellite city in the eastern suburbs of Paris, developed rapidly. In order to alleviate the traffic inconvenience caused by this, the September 1970 and 19 lines extend two stops to the southeast to Afuju Stadium Station. Since 1960, Yi Shi, Crete, as the capital of the newly established Marne Valley Province, has become increasingly prosperous, so the plan of Line 8 finally extends to the city center. On April 27th, 2007, the line continued to extend to Afuju-Ruiot station. 65438+September 24th, 0973, extending to Ilreza Station in Crete. 1974 September 10, the line extension was finally completed. At one time, the long distance of Line 8 led the authorities to adopt a segmented charging system, and passengers who got off at the east of Afuju Stadium Station had to pay extra fares. But after 1982 1 1, Line 8 returned to the traditional whole journey.