According to research and development contents of the Hebei Natural Science Foundation"Research on the mechanism of the influence of the structure evolution of carbon nitride on its chemiluminescence detection performance"and the invention patent"Humidity detection method and device",combined with the water mutagenicity of color to hu-midity,and the calculation of color signal charge amount detected by photosensitive elements,this paper discusses humid-ity detection method and device specific structure based on image color recognition of the measured object,which can be a new solution for humidity detection of solid objects.