PURPOSE: A solidification method of sewage sludge recycling sewage sludge cinder and a sewage sludge solidification materials produced thereby are provided to remove bad smell and heavy metal of the sewage sludge by recycling the sewage sludge cinder as an admixture. CONSTITUTION: A solidification method of sewage sludge includes the following steps: adjusting moisture content of the sewage sludge to 40 % or less by mixing the sewage sludge with quicklime; deodorizing the sewage sludge with a deodorizing agent; mixing the deodorized sewage sludge with a coagulation hardener; removing heavy metal in the sewage sludge by mixing incineration ash of the sewage sludge with the sewage sludge; and solidifying the sewage sludge.
