PROBLEM TO BE SOLVED: To provide a greening protection device adding planar slope-face protection work such as covering net work thereto, facilitating maintenance, securing a passage in the maintenance and, unlike the fence work, not impairing the landscape.SOLUTION: The greening protection device includes: net unit groups each of which is formed by disposing first net units at prescribed intervals apart, each first net unit being formed by bending a welded wire net consisting of grids of 10×10 cm into a stepped form, to form at least two tread faces, and by mutually movably connecting the lateral direction and/or the longitudinal direction of the first net units and first anchor pins each of which swingably fixes a side edge of each first net unit of the net unit group to the greening slope face or a slope face, the greening of which has been finished, with their positions of the centers of gravity deflected.COPYRIGHT: (C)2014,JPO&INPIT【課題】被覆網工のような面的なのり面保護を加えながら、メンテナンスが容易でメンテナンス時の通路を確保しつつ、柵工のように景観を損なうことのない緑化保護装置及び緑化保護装置を備えたのり面を提供する。【解決手段】10cm×10cmの升目から成る溶接金網を階段状に折り曲げて少なくとも二つの踏み面を形成して成る第一網ユニットを、所定の間隔を隔てて配置すると共に第一網ユニット間の横方向及び/又は縦方向を相互に可動自在に連結して成る網ユニット群と、網ユニット群の各第一網ユニットをそれぞれの重心位置をずらして辺縁部を緑化のり面又は緑化済のり面に揺動自在に固定する第一アンカーピンとを備える。【選択図】 図1