A wireless communication device includes a first storage unit, a second storage unit, an operating unit, and a control unit. The first storage unit further includes a plurality of separate storage areas corresponding to a plurality of program codes, respectively. The second storage unit is used to execute the plurality of program codes. The operating unit is configured to issue instructions to turn on power and to start up an application. The control unit is configured to load, on receipt of the instructions from the operating unit, at least one program code required to start up the application from the first storage unit into the second storage unit. The control unit is also configured to execute the at least one program code to start up the application. The at least one program code is included in the plurality of program codes.