The invention discloses a high-definition fluorescence color band level gauge, belonging to a liquid level measuring instrumentation, which comprises a section bar plate, wherein protective glass, a scale staff gauge and a rear cover plate are arranged on the section bar plate, a counterweight pulley is arranged in the internal cavity of the section bar plate, a stainless steel wire rope is tied on the upper portion of the counterweight pulley, two end portions of a middle baffle of the section bar plate are respectively provided with a driving wheel, two ends of the counterweight pulley are fixedly connected with a red-white fluorescence color band which encloses the two driving wheels. The invention has the advantages that the invention not only has the characteristics of simple structure, reliable usage and wide application and spread, but also realizes the consistency of level height change directionality and the trend of scale reading change, thereby overcoming the weakness of false reading, and the display of the fluorescence color band makes the scale staff gauge present extremely high definition, thereby greatly facilitating observers, and the operation process of the color band has no folds, adhesion and color fade, and has corrosion resistance and long service life.