The invention discloses an achievement method of an intelligent public transportation network information service system. A card swiping reader reads data information including bus card number of a bus card and uploads the data information to a vehicle-mounted server. The vehicle-mounted server receives the bus card data information uploaded by the card swiping reader and updates a card swiping record list. An APP of a mobile intelligent terminal sends access request information carrying the bus card number to a vehicle-mounted wireless router and queries whether the bus card number exists in the card swiping record list or not so as to decide whether the APP of the mobile intelligent terminal is permitted to be connected to vehicle-mounted WiFi. By means of the achievement method of the intelligent public transportation network information service system, the defect that existing vehicle-mounted WiFi access modes including paper verification codes, short message verification codes and the like are not flexible and intelligent and are poor in real-timeliness and the like is overcome, and the vehicle-mounted WiFi can be quickly and intelligently accessed for a passenger who swiped the card. In addition, abundant information service can be provided for passengers by means of the achievement method.