The present invention is to ride the wellness and golf early education boom enjoyed safely at a low cost places near golf exercise one of the least and most expensive long-distance move to a larger facility to facility It is a reality and pay the fee to use. So our surrounding rooftops or basements, garden or yard, not wide open spaces and playgrounds, etc., if potted five flat over everywhere, and you can install the secure golf driving range at low cost, the assembly of the structure, equipment, installation, reinstallation dismantling and transfer and height, width, and said simply and easily, even reduced extension of the length of all the columns and the steel surface is relieved to preclude pro golf balls at the plate is designed tilted diagonally (diagonal) coming back to the plate direction by the opposition and swing It can be increased. Further crude prefabricated by bending the pipe to the tunnel type plate pole 1 (for 1-①) and for prism 1 ~ 3 (for 1-②), 1 ~ 5 gae diagonal auxiliary poles (for 1-③), wire rope ( for 1-④), it can provide a modular safety structure Golf Practice device only proper use of eye bolts, and turned stiff. In addition, the last devised for prismatic and diagonal auxiliary poles target hung using gravity gotanryeok mesh net mosquito net shape from the top portion to the ground can be protected also outside the net and reduce noise when hitting a golf ball, transparent targets as sight golf practice device structure of transparent targets that can be imagined trajectory and distance a golf ball after hitting secured. Plate columns, for rectangular column, diagonal auxiliary pole, wire rope, the connection extension, a transparent target, one-piece base plate, eye bolts, the plate, turn stiff