Abstract: A universal serial bus device capable of automatically executing a designated program is provided, comprising a housing, a universal serial bus interface, a printed circuit board, and one or more EEPROM memory devices, wherein the printed circuit board, the universal serial bus interface and the EEPROMs are electrically connected and powered by the universal serial bus interface. In this device, the printed circuit board is provided with an integrated circuit thereon and a data terminal of each of the EEPROMs is connected correspondingly to an input/output terminal of the integrated circuit; a control terminal of each of the memories is connected correspondingly to a control terminal of the integrated circuit; a communication terminal of the integrated circuit is connected to the universal serial bus interface; and the integrated circuit is loaded with a program for automatically executing instructions.