Abstract: To improve the detection efficiency and reduce the testing cost in available mycotoxins detection methods, a rapid detection method was proposed and a color detection system was designed. In this detection system, two color sensors were applied, one was for the measurement of the color information in the sample solution,the other was for the measurement of the white balance parameters of the ambient light in real time to realize the dynamic white balance and make the color detection system be adaptive to the changing ambient light. Finally, the linear relationship between the mycotoxins concentration and the RGB values of the sample solution was established. The experimental results show that, the relative standard deviation(RSD) of the sampled data is less than 5%, and the relative error(RE) of the concentration calculated by the linear relationship and the actual concentration of the sample is less than 7%, both of which meet the laboratory requirements of precision and accuracy respectively. Compared with the common detection methods, this method is fast, convenient, and reduces the detection cost as well.