The invention relates to a queuing control system, which comprises an input and output module, a predetermined module, a reminding module, a notification module and a dynamic queuing module. The invention also provides an application server containing the queuing control system and a queuing calling system comprising the application server. The invention also provides a queuing control method, which comprises the following steps: receiving the predetermined information sent by the users, processing the predetermined information, determining whether the predetermined request of the users can be accepted or not, analyzing the reminding information, sending the reminding information to the users when the reminding condition is satisfied, determining the user's turn, notifying the user if the user is in turn. According to the invention, the users can flexibly predetermine the business, effectively use the waiting time for queuing, acquire the queue status on real time, delay the own queue or exit the queue and make an appointment with the specialist clinic, thereby the social resource can be saved.