Sand-protecting barrier device made from 20cm-high plastic net

The utility model discloses a sand-protecting barrier device made from a 20cm-high plastic net. The device comprises a plurality of sand fixing units; each sand fixing unit comprises a 20cm-high plastic net and a fixed drill rod, wherein each plastic net is arranged to be a V-shaped sand-protecting barrier and an I-shaped sand-protecting barrier through the fixed drill rod, and the I-shaped sand-protecting barriers are arranged at the openings of the V-shaped sand-protecting barriers. According to the sand-protecting barrier device provided by the utility model, an installing method and a construction structure of the sand-protecting barrier device made from the 20cm-high plastic net can be optimized, the material cost and the cost of labor of a plurality of unit area sand damage prevention can be saved, the construction environment of personnel can be improved, and the main work can be changed into indoor processing from the construction of a construction site; furthermore, the governance cost of the unit area sand damage can be reduced greatly, and the adaptability to the complex terrain of the construction site can be improved, therefore the sand-protecting barrier device is extensively applied to pilot measures of afforestation in sand damage areas or independent measure of sand damage prevention.