PROBLEM TO BE SOLVED: To provide a variable electric pasture fence in which the height of electric pasture fence line from the ground surface and inclination angle of electric pasture fence plane can be regulated, according to the changes in the attitude and the size following the growth of useful plant, and the kind of animal causing damages from eating.SOLUTION: Fence poles 5 are constituted of an electrical insulating insulator 3 for stretching electric pasture fence lines 4 and an insulator fixing pole 2, equipped with the insulator 3 and a fixing prop 1 that is fixed by inserting the lower part of the fixation prop into the ground is furnished with a ring-shaped structural portion 7, having a ring-shaped surface inclined with respect to the length direction by 0-90 degrees at the top portion, regulates the height of the insulator 3 attached to the insulator fixing poles 2 from the ground and the inclination angle of the insulator fixing pole 2, by changing the insertion angle of the insulator fixing pole 2 inserted through the ring-shaped structural portion 7 into the ground surface and fixes the insulator fixing pole 2. The variable electric pasture fence is formed by installing two or more pasture fence poles 5 and stretching the electric pasture fence lines 4, between the two or more pasture fence poles through the insulator 3.COPYRIGHT: (C)2009,JPO&INPIT【課題】 有用植物の成長に伴う姿形,サイズの変化、食害を及ぼす動物の種類等に対応して、地面からの電気牧柵線の高さ及び電気牧柵面の傾斜角度を簡便に調節することが可能な、可変式電気牧柵を提供することを目的とする。【解決手段】 電気牧柵線4を張架しうる電気絶縁性の碍子3と、碍子3を取り付けた碍子取り付け用柱2と、下部を地中に差込むことで固定が可能であり、環状面の向きが長手方向に対して0~90℃傾いた環状構造部7を上端部に具備し、記環状構造部7を通過させて地中に差込んだ碍子取り付け用柱2の差込角度を変化させることで、碍子取り付け用柱2に取り付けた碍子3の地面からの高さ及び碍子取り付け用柱2の傾斜角度を調節でき、且つ、碍子取り付け用柱2を保定できる固定用支柱1と、からなる牧柵柱5を2以上設置し、碍子3を介して前記2以上の牧柵柱間に電気牧柵線4を張架してなることを特徴とする、可変式電気牧柵を提供する。【選択図】 図1