The invention provides a data line with a timing switch protection function, which comprises a
USB3.0 connector and a TYPE-C connector, and is characterized in that the
USB3.0 connector is provided with a first pin, a second pin, a third pin and a fourth pin which are arranged side by side, and the fourth pin is connected in series with an IC
chip, a first
resistor and a timing protection
chip; and a timing
control circuit is arranged on the timing protection
chip and is used for randomly setting the timing time, when the preset timing time is up, the timing protection chip automatically cuts off the power supply and stops the operation of the data line, and when the working duration exceeds the preset time, the timing
control circuit of the timing protection chip can automatically
cut off the power supply. When the data line is normally used, the data line can be disconnected at regular time and stop working during working, equipment is effectively protected from being damaged, a
USB3.0 connector stops power supply, automatic protection can be achieved after long-time use, a specially-assigned person is not needed for guarding, and the normal function of a product cannot be affected by environment changes.