Abstract:To improve the detecting precision of light illuminometer, for the illumination detection system, applied Takagi –Sugeno model of Adaptive Neural-Fuzzy Inference System(ANFIS), compensated the error of illumination detection circuits, and introduced software simulation of silicon-photocell high-precision light illuminometer. Finally, using measured data of the light test platform as the sample data, the MATLAB software simulation results show that: Adaptive Neural-Fuzzy Inference System through self-learning , can automatically adjust membership function parameters and the fuzzy rules, improves the precision of illumination detection.