A mobile communication terminal and a method for reducing power consumption for driving a hard disk drive (HDD) of a mobile communication terminal are provided when controlling an interface between a transition integrated circuit (TIC) that takes charge of the interface with the HDD built in the mobile communication terminal and the HDD. The terminal and method include producing an HDD access request signal, initializing the TIC by resetting the TIC through a power-on of the TIC, performing an access of the HDD by driving the HDD after the initialization of the TIC is completed, and turning off an operation power of the TIC after the access of the HDD is completed.