disclosed are a composition for detecting helicobacter pylori including urea 0 . 5 to 4 percent by volume , potassium phosphate 0 . 05 to 0 . 2 percent by volume , phenate reagent solution 0 . 8 to 1 . 7 percent by volume , an indicator having a pk a of 6 . 5 to 8 . 5 , 0 . 002 to 0 . 005 percent by volume , and a balance of water , a kit for detecting helicobacter pylori using the composition and detecting method using the composition can determine quickly and accurately whether or not an infection by helicobacter pylori exists , can obtain the same determination results after an elapse of time and can be used easily in an endoscope chamber .