The utility model discloses a grassland area grass harvesting appearance trim note device, it includes from bottom to top fixed connection's bracing piece in proper order, a fixed base, the triangularprism housing, at the inside battery of having placed of fixing base, the switch has been installed at the fixing base lateral part, at the inside lamp that has installed of triangular prism housing,the three side board of triangular prism housing is made by the light -passing board, the side board includes the panel main part, propaganda page or leaf and transparent cover, the terminal surfacerotates upward and moves the cardboard that is equipped with more than two outside the panel main part around the recess, the cardboard contacts with transparent cover's outer terminal surface activity. The advantage: bracing piece height -adjustable, and then make the utility model is suitable for a mark in co -altitude forage grass appearance district not, extensive applicability, set up lamp, night can understand look over kind district's information, the discernment of being convenient for to the reflecting material that has coated on the characters has further improved identifiability, utilize the solar photovoltaic board for the battery provides the electric energy, can provide sufficient electric energy for lamp.