The invention discloses viscose and activated carbon non-woven fabric for filtering and a preparation method of the viscose and activated carbon non-woven fabric. The method is characterized in that impregnation and coating are performed on viscose non-woven fabric, activated carbon and auxiliaries (sodium dodecyl sulfate and polyvinyl alcohol) in a certain ratio, both sides of obtained fabric arebonded by hot melt glue through hot pressing, the fabric is dried for fixation of the hot melt glue, and a viscose and activated carbon non-woven fabric filtering material is obtained. The preparation method is simple, feasible, low-carbon and environmentally friendly, the prepared viscose and activated carbon non-woven fabric for filtering not only has great value and significance in the field of water filtering, but also shows good effect on filtering of metal ions and dyes and plays an important impelling role in environmental protection and sustainable development of resources.