In order to evaluate the apparent quality of scenic water objectively and quantitatively, a method is proposed to measure and evaluate the apparent quality of scenic water. The scenic water is illuminated by halogen lamps in the dark room, while the reflectivity and reflection spectrum data is measured by a spectrometer. The relation between reflectivity and turbidity of water as well as the relation between reflection spectrum and chroma of water are quantified respectively. By which the apparent quality factor of scenic water is defined to evaluate the apparent quality of scenic water. The affects of the water turbidity and chroma are both considered in this method，and the influence of time and surroundings can be avoided.