The differences between the South Square and the North Square of Chongqing North Railway Station are as follows:

1. The location and scale are different. South Square is located on the south side of the railway station, with a relatively small scale, mainly facing the streets and subway entrances and exits, providing bus stops and taxi boarding and alighting points; The North Square is located on the north side of the railway station, which is larger, with more parking spaces and multiple parking lots.

2. Different functions. South Square is mainly used to deal with the problems of buses, taxis and bicycles entering and leaving the station, and to run ordinary trains such as special and express trains. The North Square is more used for parking cars, motorcycles and bicycles, and there are also some bus entry and exit stations, which are mainly responsible for intercity railways and high-speed railways.

3. The facilities are different. There are waiting rooms, waiting halls, convenience stores and restaurants in both the South Square and the North Square, but the facilities in the North Square are more perfect, with more restaurants and shops for people to choose from.

4. The rail transit lines are different. Both squares can take Rail Transit Line 11, but the North Square can also take Line 4, and the South Square can also take Line 3 and Ring Road.

5. The roads are different. The road after leaving the station is different. After leaving the station, the North Square of Chongqing North Railway Station is Lushan Avenue, while after leaving the station, the South Square is Kunlun Avenue.