Abstract: Various embodiments, which relate to an electronic device implanted in tissue of an animal and for delivering stimulation to the neural tissue and operating method thereof, may be configured to generate a control instruction based on a control signal wirelessly received from an external device, and based on the control instruction, to input stimulation through a neural probe formed with flexible material and led out to a predetermined location of the tissue. According to various embodiments, the stimulation includes chemical stimulation by a fluid type of drug, and the neural probe may be formed to flow drug, and may include at least one fluid tube for inputting the chemical stimulation by being opened at one end of the neural probe.