NOVELTY - An antiseptic enrofloxacin is produced by pumping ethylated ciprofloxacin paste to hydrolyzing and neutralizing tank, loading distilled water, adding potassium hydroxide, and refluxing, cooling, pumping sulfuric acid under stirring condition for neutralization, setting aside, subjecting to centrifuge, filtering, collecting filtrate, washing separated filter cake with distilled water while making the washing water enter the waste liquid tank, vacuum drying the filter cake, crushing dried filter cake, and weighing and packing.    USE - Process of producing antiseptic enrofloxacin (claimed) for fowl or livestock.    ADVANTAGE - The process does not require catalyst, reduces environment pollution and damage to workers, has improved yield by as much as 3%, and reduces production cost.    DETAILED DESCRIPTION - An antiseptic enrofloxacin is produced by:    (A) pumping 95% ethanol (4-6, preferably 4 wt.%) in an ethylating agent reaction tank in vacuum state, adding ciprofloxacin (1-1.5, preferably 1 wt.%), and stirring for 50 minutes;    (B) pumping ethylating agent (0.33-1, preferably 0.33 wt.%) in a measuring device in vacuum state, adding dropwise the ethylating agent to the reaction tank at room temperature at a speed of 1kg/minute;    (C) draining water in the jacket of the reaction tank, opening the steam to carry out heating and refluxing for 1 hour;    (D) decompressing and distilling 67% of ethanol to obtain ethylated Ciprofloxacin paste, and storing the distilled ethanol in a storage tank;    (E) pumping the ethylated ciprofloxacin paste to hydrolyzing and neutralizing tank, loading the distilled water (20-22, preferably 20 wt.%), adding potassium hydroxide (1-1.3, preferably 1.2 wt.%), draining the water in the jacket of the reaction tank, opening the steam to carry out heating, and refluxing for 1.5 hours;    (F) cooling to 50 degrees C with water, cooling further to 25 degrees C using cold liquid, pumping sulfuric acid (1-1.5, preferably 1 wt.%) under stirring condition for neutralization, setting aside for 30 minutes, and subjecting to centrifuge; and    (G) filtering, collecting filtrate, washing separated filter cake with distilled water while making the washing water enter the waste liquid tank, vacuum drying the filter cake, crushing dried filter cake, and weighing and packing.    DESCRIPTION OF DRAWING(S) - The drawing is a flow chart of a process of producing antiseptic enrofloxacin. Drawing includes non-English language text.