The invention provides a making method for rehmannia leaf and wild honeysuckle flower soybean sauce. The rehmannia leaf and wild honeysuckle flower soybean sauce is made through the steps that rehmannia leaves and wild honeysuckle flowers serve as raw materials, the wild honeysuckle flowers are subjected to extracting solution preparation, raw material pretreatment, filtration, enzyme treatment and filtration; soybeans are subjected to pretreatment, mixing, inoculating, fermenting, squeezing, filtering, sterilizing and packaging. The rehmannia leaves are soaked through wild honeysuckle flower decoction liquid and then pulped, the loss of nutrient substances of the rehmannia leaves is avoided, complex enzyme treatment is carried out on the rehmannia leaf size, the utilization rate of the rehmannia leaves is greatly increased, steam enzyme deactivation is carried out on the rehmannia leaves, the bitterness of the rehmannia leaves is removed, the taste of the finished soybean sauce is improved, and the quality of the finished soybean sauce is improved. The rehmannia leaf and wild honeysuckle flower soybean sauce has the advantages that the quality is stable, and the making method is simple and easy to grasp; the finished soybean sauce is mellow in flavor and balanced in nutrition, and has the effects of clearing away heat and toxic materials, dispelling wind and heat, enriching yin, nourishing kidney and the like.