The utility model relates to an ecotype supporting structure, which aims to support a side slope and improve the ecological environment of the side slope surface, adopts the technical scheme that the ecotype supporting structure is provided with a side slope in need of supporting, and is characterized in that earth and stone filling materials are piled at the bottom of the side slope, a main supporting body formed by geogrids is arranged in the earth and stone filling materials in a layer-separation way; the main supporting body is continuously surrounded by planting bags which are distributed in a ladder way, so as to form a plurality of set-back models. The ecotype supporting structure of the utility model is applicable to the supporting/retaining processing and afforesting of loose mass or half-cemented body side slopes in roads, hydraulic and hydro-power engineerings, buildings and mine fields, and to the basic processing and afforesting in case of narrow spaces in the engineering construction fields.