The invention relates to an automatic Chinese liquor blending system based on a fusion detection technology of an electronic tongue and an electronic nose as well as flow control; the blending proportion is controlled according to the detection results of the electronic tongue and the electronic nose, so that different batches of liquors with different flavor in different years can be automatically blended, and high-quality blended liquor can be obtained. The basic process comprises the steps of firstly, selecting a great deal of representative base liquor samples, measuring the response of the electronic tongue and the electronic nose for the base liquor samples, and establishing the quantitative relationship between measurement information and quality parameters; after that, beginning to blend by taking a small blending (small plate blending) formula as initial proportion, and carrying out online measurement on the response of the electronic tongue and the electronic nose for the blended liquor and all base liquors at the same time to obtain all the quality parameters of all the liquor samples; controlling an electromagnetic valve according to the quality parameters based on a blending control algorithm to realize the adjustment for the proportions of all the base liquors; repeating the processes of the online measurement of the electronic tongue and the electronic nose and real-time base liquor proportion adjustment until the quality of the blended liquor is similar to that of the small blended liquor.