The Latin name: vaccinium uliginosum The Alias name: Vaccinium Oxycoccus Pigment The Blueberry P. E widely exists in plant' s flower, the fruit and the rhizome, is main colored ingredient in plant, belongs to the flavonoid. The Blueberry P. E has the many kinds of physiological action, it can adjust the permeability of blood capillary, vindicate cell integrity, and also hold the formidable anti-oxidized function. Through further research we discover the Blueberry P. E has promotion rhodopsin function and archery target synthesis, prevention thrombus and arteriosclerosis, suppression cancer cell enzyme activity, at present has used in the ophthalmology department medical service domain, the treatment joint inflammation and the urine road infection and so on.