The utility model provides a decorate bionical plant device of skin, includes the steel structural framework of flat type, fixes being equipped with a plurality of afforestation modules in one side of steel structural framework, the afforestation module include that the appearance is down triangular pyramid shape's wire net bracket, triangular pyramid shape's top surface is isosceles triangle, angular point point and steel structural framework fixed connection at the bottom of two of isosceles triangle, the position at isosceles triangle's top angular point point place is higher than the position at angular point point place at the bottom of two, be equipped with the cultivation container in the wire net bracket, there is the green plants through the nutrient media cultivation in cultivating the container, be equipped with at steel structural framework's upper end or lower extreme and be used for carrying out the irrigation equipment that waters to the green plants. Can richen vertical afforestation view, improve the afforestation coverage in the city, still strengthen the heat preservation of skin, thermal -insulated effect.