The invention relates to a hand tool expanded structure. The body of the hand tool expanded structure comprises a tool body and an expanded piece, wherein the tool body is provided with a grab handle, an extended supporting rod and a work head; a circuit control display is embedded in the grab handle which is provided with a receiving port; the circuit control display is electrically connected with the receiving port and used as an electric control device for value setting, corresponding setting, data display and system integration; the work head is provided with a sensing device which is electrically connected with the circuit control display; the sensing device can detect the action information of the work head and sends the action information to the circuit control display; the expanded piece is provided with a plug which can be inserted relative to the receiving port; and the expanded piece can be replaced into an expanded piece which has different functions, such as operating statistics, status identification, theft prevention, search, and the like according to work demands so as to produce digital additional work benefits together with the circuit control display.