To make this special issue is intended to design and create a chemical spray water by engine type. Characteristics of the machine are made from structural steel 25 * 25 scenes. Mm (2 ") long, 80 cm wide and 110 cm and 46 cm high engine capacity, size, etc., there are 1.2 horsepower speed 7000 RPM by testing the actual chemical type extruding machine in water by the engine of a master to determine the performance and actual performance by spraying drugs eliminate weeds in the garden, they often found that trees 6603 sq m, with the actual performance is 1.02 acres/hour.