The invention discloses a voice-reminding charging data line and a charging method thereof. The charging data line comprises a data connecting line, a second outer shell, a
USB connector, a first outer shell and a charging connector, wherein the second outer shell and the
USB connector are arranged at the head end of the data line connecting line, the first outer shell and the charging connector are arranged at the
tail end of the data line connecting line, control PCBs are arranged in the first outer shell and the second outer shell, each control PCB is provided with a micro-control
chip and a
resistor in an integrated mode, the control PCB arranged in the first outer shell or the control PCB arranged in the second outer shell integrates a voice reminding unit, the voice reminding unit comprises a voice
chip electrically connected with the micro-control
chip of the control PCB and a power
amplifier chip electrically connected with the voice chip, and each power
amplifier chip is electrically connected with a
loudspeaker port used for being connected with a
loudspeaker. The voice reminding unit is integrated in the control PCB in the outer shell at one end of the data line connecting line, users can visually learn about the charging conditions of electronic products by hearing voice, and the voice-reminding charging data line is more convenient to use and practical.