The present invention relates to a method for manufacturing a flower sculpture and a sculpture thereof, the step of generating a cyan image three-dimensionally representing the shape of the sculpture (S1)； Drawing a basic shape of the cyan image on the ground to scale and connecting a steel rod according to its outline to produce a flat border (S2)； An additional shape joining step (S3) of forming a protruding additional shape using an iron rod on the planar border and connecting a reinforcement to the additional shape； A volume forming step (S4) of combining the plurality of horizontal volume forming rods and the plurality of vertical volume forming rods using the iron rods on the planar border； A post and pedestal installation step (S5) of connecting the horizontal volume forming rod or vertical volume forming rod coupled with a plurality of supports and combining the prop and the pedestal； Anti-rust paint application step (S6) for applying the anti-rust paint to the sculptures and the support is installed； A detailed skeleton forming step (S7) of dividing the work piece to which the anti-rust paint is applied into a gardening plant space and a molding material attaching space, and fixing aluminum or zinc wire to the molding material attaching space using a cable tie； An aluminum net installation step (S8) of covering the aluminum net using a cable tie to the molding member attaching space in which the detailed skeleton forming step (S7) is completed； A "U" shaped planting space forming step (S9) of forming a "U" shaped planting space with a plastic net inside the horizontal volume forming rods above and below the horticultural planting space； A molding material attaching step of preparing a molding material and attaching the molding material to the molding material attaching space and drying the molding material (S10)； A molding material attaching space coloring step of coloring the surface of the molding material attaching space (S11)； Non-woven fabric installat
