A sheet 1 for leaching which comprises a laminated sheet being comprised of a long fiber non-woven fabric 2 comprising a synthetic fiber of a high melting point resin having a METSUKE of 5 to 30 g/m2 and a short fiber non-woven fabric 3 comprising a synthetic fiber of a low melting point resin and having a METSUKE of 3 to 15 g/m2, characterized in that the short fiber non-woven fabric 3 comprises fibers having a fiber length of 3 to 15 mm being randomly dispersed, deposited, and thermally adhered to one another, and that in a chart of a void diameter distribution of the sheet for leaching, the maximum peak exhibits a distribution percentage ten times or more that of another peak.