The present invention discloses a personal working system with a dynamic structure, including a central control unit, wherein the central control unit includes an external device identification component used for identifying a plurality of external devices and connecting the identified plurality of external devices into a working system; a weak (or short-distance) communication interface for the communication between the central control unit and the external devices; a strong (or medium-distance and long-distance) communication interface for the communication between the central control unit and an external node; the weak communication interface includes Bluetooth; and the strong communication interface includes WIFI connection, Internet connection, local area network connection and radio telephone connection. The present invention has the advantages that the external devices will not be outdate and is universal with the external devices of the system in the world.