The post station is the place where officials who passed military information boarded the bus and changed horses on the way in ancient times. There are two words (_ female) and (_ qi) in Oracle Bone Inscriptions unearthed in Yin Ruins, which are related to transmitting information. Beacon towers and post offices were established in the Zhou Dynasty to transmit military information. In the Han dynasty, a post station was set up every 30 miles, and Qiu was in charge.

The post office means "hotel" in modern times. The hotel originated from the original post station, which was originally a place where officials rested to deliver letters or feed horses and forage. Moreover, the post station is a place where ancient travelers stop to rest and comfort the journey. The post station is the place where officials who passed military information boarded the bus and changed horses on the way in ancient times.

At present, a post station mainly refers to a place where people can temporarily rest or spend the night. Focus on places where you don't live for a long time, such as the service area on expressway and the inn on the trip. These places can generally provide catering, refueling, accommodation, shopping and other services. A post station can also refer to a platform, such as a rookie post station.