To provide a method of production for cleaning cloth preventing unbalance resulting from sticking to a conveyer or flowing of stock solution, having strong bondability, porous and excellent in cleaning effect, capable of being decomposed into harmless substance by a bacteriological action when disposed after use and to provide the cleaning cloth.

This method comprises installing water tank 5 for foaming reaction in place of a conventional single side heating type high temperature foaming process, filling the tank with hot water heated to 90-110°C, carrying out a foaming reaction by passing a material to be processed through the water to make both sides of the fibrous material to have a number of homogeneous air-permeable pores, producing semifinished porous cleaning cloth having strong bondability, cooling and removing acid by washing the catalyst in a washing, cooling and acid removing process 6, neutralizing and compressing to remove water remaining in pores in a washing and compressing process 7 and then drying by a drying process to obtain finished cleaning cloth having comparatively large pore size, stable and excellent in bondability.