Disposable electrosurgical plate-cautery is used for surgery with a cautery device. The thermal effect of the electrosurgery device, which leads to tissue destruction, is caused by the electrical resistance of the tissue to the current with high frequency and density, and the density of the current passage causes the tissue to be cut. In fact, the electrosurgery plate is the completion of the RF application circuit to the patient. Without the density, it creates a high current to damage the tissue. and return the electric current to the device through it and through the interface cable. The plate should have a suitable contact surface with the patient’s body to create an output path with low resistance and low current density.