A data processing method and apparatus of a memory pack of an Internet microwave oven. A computer is connected to a Web server and a detachable memory pack includes an interface unit performing an interface operation to access the computer. A memory pack control unit transmits or receives information to/from the Web server, through the interface unit, and controls the operation of the detachable memory pack. A storage unit stores the information received by the memory pack control unit. An Internet microwave oven includes the detachable memory pack and accesses the information stored in the detachable memory pack.