A multichannel stimulation system for regenerating damaged corneal nerves, the system comprising: a multichannel unit including a first channel formed of a conductive material and, in use, attached between an area above a left eye and a left eyebrow to transfer a stimulation signal, and a second channel formed of a conductive material and, in use, attached between an area above a right eye and a right eyebrow to transfer the stimulation signal; and a stimulation signal module for providing the first channel and the second channel with a current pulse signal as the stimulation signal, wherein the multichannel unit includes a contactor formed between the first channel and the second channel in one piece to electrically contact with the stimulation signal module, and the current pulse signal comprises a positive current pulse signal during a first duration time, a zero current signal during a second duration time following the first duration time, a negative current pulse signal during a third duration time following the second duration time, a zero current signal during a fourth duration time following the third duration time, a negative current pulse signal during a fifth duration time following the fourth duration time, a zero current signal during a sixth duration time following the fifth duration time, a positive current pulse signal during a seventh duration time following the sixth duration time, and a zero current signal during an eighth duration time following the seventh duration time, and characterised in that: the first duration time of the current pulse signal is 2 to 15 times of the third duration time of the current pulse signal, and the fifth duration time of the current pulse signal is 2 to 15 times of the seventh duration time of the current pulse signal. a multichannel unit including a first channel formed of a conductive material and, in use, attached between an area above a left eye and a left eyebrow to transfer a stimulation signal, and a second channel formed of a conductive material and, in use, attached between an area above a right eye and a right eyebrow to transfer the stimulation signal; and a stimulation signal module for providing the first channel and the second channel with a current pulse signal as the stimulation signal, wherein the multichannel unit includes a contactor formed between the first channel and the second channel in one piece to electrically contact with the stimulation signal module, and the current pulse signal comprises a positive current pulse signal during a first duration time, a zero current signal during a second duration time following the first duration time, a negative current pulse signal during a third duration time following the second duration time, a zero current signal during a fourth duration time following the third duration time, a negative current pulse signal during a fifth duration time following the fourth duration time, a zero current signal during a sixth duration time following the fifth duration time, a positive current pulse signal during a seventh duration time following the sixth duration time, and a zero current signal during an eighth duration time following the seventh duration time, and characterised in that: the first duration time of the current pulse signal is 2 to 15 times of the third duration time of the current pulse signal, and the fifth duration time of the current pulse signal is 2 to 15 times of the seventh duration time of the current pulse signal.