The invention relates to an algae culturing bed, in particular to a non-woven fabric algae culturing bed. The algae culturing bed comprises a bed body used for the attachment of algae, and a support part used for fixing the bed body. The algae culturing bed has the advantages of being suitable for the attached germination of attached algae spores and particularly suitable for the attached growth of macroalgae, and capable of culturing and recycling algae in large area easily. The non-woven fabric is easy to dip for a long time and can not corrode, has good air permeability and good attaching function, is light, good in environment-friendly effect and low in cost.