Abstract: To promote consistency of blended tobacco during tobacco threshing and redrying, two new control factors, namely the color qualitative value and spectral qualitative value, of tobacco leaves were introduced to regulate nicotine contents. The consistency of tobacco threshing and redrying under the different regulation modes was compared based on a typical high-bay warehouse setup. The results showed that: 1) The coefficient of variation (CV) of nicotine in the finished blend strips was all below 3% under the tested modes. 2) The regulation modes in the order of regulation ability for chemical component consistency of finished strips were spectrum regulation > nicotine+color regulation > color regulation > nicotine regulation > spectrum + color regulation. The control ability for the near-infrared spectral consistency of the finished strips were in the order of: spectrum regulation ≈ nicotine + color regulation > color regulation > nicotine regulation > spectrum + color regulation. 3) Spectral dispersion and similarity significantly correlated to the chemical component consistency, K value, with the correlation coefficients of 0.85 and 0.96 respectively.