A file downloading apparatus of a mobile terminal in a mobile communication system, includes a signal processing unit which processes a signal received through an antenna of the mobile terminal, a memory which stores data outputted from the signal processing unit, a download status checker which checks the download status of a file by monitoring the data stored in the memory, and a CPU which controls the signal processing unit and the download status checker. In the file downloading mechanism, it is possible to resume downloading of the file from the point at which the download was stopped in the previous data transfer session even though the data transfer link is broken during the downloading of the file due to unexpected network problems or other problems.