It includes the steps of (1) preparing step； (2) anesthetizing step； (3) electrodes installing step； and (4) focal onset seizures inducing step. First, a live animal is anesthetized. The electrodes are installed on a working zone of its brain. A first chemical liquid is injected beneath the cerebral cortex of this animal. At two different times, a first electric stimulation and a second electric stimulation are activated by the controller respectively so as to generate a first and a second focal onset seizure accordingly. Thus, it can generate focal onset seizures. It is easy to change the electric stimulation position, numbers and type. In addition, the survival rate of a larger-sized animal after anesthesia is higher.
