The invention discloses a wind power generation device and system based on a friction generator. The wind generation device based on the friction generator includes a support device and at least one friction generator. The friction generator includes a first structure layer and a second structure layer, between which a friction interface is formed, wherein the first structure layer and the second structure layer form an output electrode of the friction electrode. The support device includes a support substrate and support rods fixedly arranged on the support substrate. One of the first structure layer and the second structure layer is connected with the support rods through elastic parts and the other is fixedly arranged on the support substrate. The wind power generation device is simple in structure, light and convenient in material, low in cost, easy to machine and cut, and comparatively high in output power.