Provided is an anchor pile that does not easily come out even if it is inserted into the ground even on soft ground such as a field. A shaft portion 11 formed in a pipe shape, a placement portion 12 formed at the upper end of the shaft portion 11 for hitting a pile with a hammer or the like, and extended to the left and right sides of the placement portion 12 are formed. And a taper portion 15 for tying a string or a rope, and a tapered portion 15 formed at the tip of the shaft portion 11 and sharpened downward so as to be easily inserted into the ground. In the middle of the shaft portion 11 in the vertical direction, a flat plate-like extending member having a width dimension substantially the same as the diameter of the shaft portion and extending in two directions left and right substantially perpendicular to the longitudinal direction of the pile 20, the extending member 20 is provided in at least two stages in the height direction of the pile, and the extending dimension of the upper extending member 21>； the extending dimension of the lower extending member 23. [Selection] Figure 1【課題】畑のような軟弱な地面でも、一旦地中に差し込めば容易に抜け出すことがないアンカー杭を提供する。【解決手段】パイプ状に形成された軸部１１と、軸部１１の上端に形成され杭をハンマーなどで叩き込むための打設部１２と、打設部１２の左右側方に延出して形成され、紐やロープなどを結ぶための鈎部１３と、軸部１１の先端に形成され、地中への差込みが容易なように下方を尖らせたテーパ部１５と、からなる地中に差込む杭であって、軸部１１の上下方向の中間には、軸部の直径と略同じ幅寸法で、杭の長手方向と略直角で左右２方向に延出している平板状の延出部材２０が設けられており、延出部材２０は、杭の高さ方向に少なくとも２段設けられており、上段延出部材２１の延出寸法＞下段延出部材２３の延出寸法である。【選択図】図１
