PURPOSE: To simplify the manufacture of a lawn structural body by fixing the ends of rows of the plural number of fine thread members of thermoplastic synthetic resin to a channel of a plate-like body having a plurality of channels at specific intervals.

CONSTITUTION: Bundles 8 consisting of fine thread members having about 10-20 pieces of thermoplastic resin are fixed in the shape of a reed screen with threads 6, and they are temporarily fastened with releasing threads 7 to form a row 3. The lower end of the row 3 is inserted along a channel of a plate-like body 2 having a plurality of channels with a trapezoid section, and is fixed with a triangular spacer 9 to make a lawn structural body. The earth and sand caking body consisting of the earth and sand and polymer-latex is poured between rows of the lawn structural body, after drying and making a coupling layer 12, the sand is spread over to form a sand layer 13, and the threads 7 are taken away to complete an artificial lawn structural body 10. Accordingly, the structural body can be easily manufactured.