Due to high optical sensitivity and fast image response of CCD,this paper proposed a research combined with the theory of color recognizing for liquid different turbidity fast detection. Through the analysis of light transmission theory and principles of CCD sensor, self-made experiment platform were used to measure the turbidity of multiple sets of formazine standard solution of different turbidity values. The experimental data were proceed used the curve fitting of least squares method. Meanwhile, the measured data of WGZ - 2 turbidity instrument for formazine standard solution of different turbidity values were listed. The math-ematic relationship was achieved between turbidity value and RGB experimental. The system used this method have small errors and good stability in the measurement process. Thus it has good prospect in microbial detection industry.%针对CCD光电灵敏度高和图像响应快的特点,结合颜色识别理论提出一种基于CCD的液体多浊度快速检测方法.通过光透射理论和CCD传感原理分析,自制实验平台对多组标准福尔马肼浊度液进行测量,采用最小二乘法对数据作曲线拟合；同时,对比列出了WGZ-2型浊度仪对标准液测量的数据.通过实验数据分析得出了浊度与RGB值的数学对应关系式,系统采用该方法在测量过程中产生误差小、稳定性好,并取得了良好的效果.在微生物细菌检测行业有较好的应用前景.
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