An array-type electrode, which may include a substrate, an isolating layer, an electrode and a micro-structure layer. The isolating layer may be disposed on one side of the substrate. The first part of the electrode may be disposed on one side of the substrate and covered by the isolating layer; the second part of the electrode penetrates through the substrate; the third part of the electrode may be disposed on the other side of the substrate; the first part may be connected to the third part via the second part. The micro-structure layer may be disposed on the isolating layer.