Abstract: The preparation method of sewage sludge adsorbents and its application development in the field of decontamination are introduced. The recent progress in preparation with direct drying method，traditional sludge activation carbonization method and microwave activation carbonization method are described. It is demonstrated that the structure of sludge carbon can be changed and the effiency of adsorption and decontamination can be improved through addition of metal oxide，polymer and relevent accessories into the sludge. Moreover，the decontamination mechanism of sludge adsorbents and the application of Langmuir Freundlich Models are also discussed.