The invention discloses a method for manufacturing natural plant dyeing cloth or silk fabric. The method comprises the steps of carrying out grinding on the plant raw material, carrying out other steps to obtain dye liquor; and then, carrying out dye material pretreatment, mordanting, washing, dyeing, soaping, and drying in the shade to obtain the plant dyeing cloth, wherein metal salt is fed into mordant dye, so that the functions of color development and color fixation are reached. The plant dyeing cloth or silk fabric is bright in color, uniform in dyeing and good in dye fastness, does not fade and change color, and is multiple in colors, soft, simple, unsophisticated and natural in colors. The method is rich in plant raw material resource, so that planting is easily expanded; the method is non-toxic and harmless; the method solves the problems of the pollution to the environment and the harm to the human body which are caused by synthetic dye, and has a health function. The method provided by the invention can be applied to the clean production of wool textile industry, and the mass production is realized.