A view definition enhancement system for gastrointestinal endoscope diagnosis and treatment (ESCGV) comprises a washing bottle (1) and a liquid delivery pipe (2) led out from the washing bottle (1). The liquid delivery pipe (2) pumps washing liquid to a liquid inlet system of a gastrointestinal endoscope or an observation window of the gastrointestinal endoscope through a first peristaltic pump (3)； and the washing bottle (1) is further provided with a stirring and heating subsystem capable of stirring and heating the washing liquid. A view definition enhancement method for gastrointestinal endoscope diagnosis and treatment comprises steps of: 1) adding the washing liquid into the washing bottle (1)； 2) magnetically stirring the washing liquid in the washing bottle (1), and heating the washing liquid at the same time； 3) setting the temperature of the washing liquid to 25-38°C； and 4) delivering the washing liquid into the observation window of the gastrointestinal endoscope. The ESCGV can enhance the view definition under the gastrointestinal endoscope, make the operation simple and convenient, reduce the missed diagnosis and erroneous diagnosis, and improve the treatment quality of the gastrointestinal endoscope.
