[Objective] The research aimed to study the low-cost medium instead of MRS to product lactobacillus suspension and provide theoretical basis for the large-scale production of stalk fermented by lactobacillus.[Method] Different concentrations of glucose and sodium chloride were added into the cooking liquor of maize flour,and lactobacillus was inoculated to ferment the stalk.The changes of pH was measured and compared with MRS medium.The optimum low-cost medium for producing lactobacillus and fermenting stal...