The invention provides a portable and compact multifunction cellular phone that can include both a cellular phone function and a large number of other functions and is integrally provided with a function for enjoying games, music, images, data, and the like. The multifunction cellular phone is characterized in that a left side operation board, a display, and a right side operation board are layered and mounted on a hinge section so as to open and close freely, respectively, display sections of at least numerals, characters, symbols, and the like applicable to a cellular phone are arranged on the left or the right operation board and display sections of numerals, characters, symbols, operations buttons, and the like for operating other functions are arranged on the operation board on the other side, and the display is rotatable and/or movable in order to handle the cellular phone and the other functions or display screens are formed on front and rear surfaces of the display, respectively.