Abstract: An anchoring device for a fence, wherein the anchoring device comprises at least one fence post and elongated support beams (1, 2, 3) connected to the fence post to support the fence post, wherein the fence post comprises a post portion (4) comprising a lower section which is provided to extend substantially underground and an upper section which is provided to extend substantially aboveground in installed state of the anchoring device, wherein the anchoring device comprises a first and a second said support beam (1, 2), wherein these support beams (1, 2) are connected to the post portion (4) at the height of the lower section of the post portion (4) in such a way that the first and second support beam (1, 2) extend opposite each other, extend beyond the rear part and are provided to extend substantially underground in installed state of the anchoring device.