A directed data plan service-launching system includes an intelligent communication terminal, a virtual operator directed data plan system, a virtual operator billing system and an application background server, wherein the intelligent communication terminal calculates and stores mobile network data usage, and periodically uploads the same to the virtual operator directed data plan system with a certain time period, the virtual operator directed data plan system performs bill integration on data of the data usage to form and send a directed data plan bill to the virtual operator billing system, and the virtual operator billing system performs a charge deduction or billing with a specific price on the directed data plan bill; a primary operator billing system performing a charge deduction or billing with a specific price on the directed data plan bill; and an application background service system providing a background service to an application client side.