Objective To compare the different processing methods for Eucommiae Cortex such as stir-frying with salt-water, wine, and honey and so on, and to investigate the effects of different adjuvant materials on the quality of Eucommiae Cortex. Methods The contents of index components such as pinoresinol diglucoside, ethanol-soluble extractives, and loss rates were chosen as indexes. The effects of different adjuvant materials on the quality of Eucommiae Cortex were investigated by scores of weight coefficients. Results The adjuvant materials had the significant impact on the quality of processed Euc...