The growth of industrial and municipal wastewater treatment facilities has resulted in major increase in the quantities of sludge and has exacerbated problems of waste sludge treatment and disposal. Now wastewater sludge is regarded as useful resources for fertilizer fuel, cement ingredient, permeable block and tile. But it is difficult to reuse sewage sludge due to high contents of moisture, and limit to the amount of removal water by using mechanical treatment. Drying technology is being magnified as a solution of removal water problem of sewage sludge, understanding of the characteristic of sludge drying and selection of drying technology are required. This research contains moisture content and viscosity characteristics which can influence process treating sewage sludge of stage Ⅱ recycling facility. In addition, we also tried to reduce the variability which can be caused by treatment processes and develop a plan for an unexpected situation. The results viscosity measurements of seasonal sewage sludge, the dryer operating conditions of spring, summer and autumn, winter is a need to access different. And the viscosity is maintained to 45Pa∙s or less in order to the moisture content less than 10% of dry sludge