The utility model discloses a but automatic ink jet numbering machine of self -adaptation material position, including ink jet numbering machine, fixed bolster, the one end at the ink jet numbering machine support is fixed to the ink jet numbering machine, and the other end of ink jet numbering machine support is fixed on electric putter, and electric putter fixes on the lifter plate, and the lifter plate is fixed with four sliders, and the slider cooperates with two guide rails fixing on the fixed bolster, is connected with the cylinder between lifter plate and the fixed bolster. Be fixed with the cylinder connecting seat on the fixed bolster, the upper end of cylinder links to each other with the lifter plate through the round pin axle, and the lower extreme of cylinder links to each other with the cylinder connecting seat through the round pin axle. Lift self -adaptation material through the control hydro -cylinder spouts the lengthwise position of sign indicating number, removes the horizontal position that the self -adaptation material spouts the sign indicating number about through control electric putter. Guaranteeing that the ink jet numbering machine spouts a yard position in the best of zinc buttress and spouts the sign indicating number, spouting a yard position accuracy, efficient, it is clear to spout the sign indicating number.