In a computerized method for loading applications of a portable device, a usage frequency of each of the applications is counted during a time period when the portable device is in a power-on state. The applications that are installed in an external or embedded storage of the portable device are searched and the usage frequency of each of the applications is obtained, when the portable device is booted or rebooted. The applications are arranged in a sequence according to the usage frequency of each of the applications, and each of the applications is loaded from the external or embedded storage to a random access memory of the portable device in sequence according to an arrangement order of each application in the sequence.