The invention discloses an integral sludge incineration system for a circulating fluidized bed, which includes an incinerator, a separator, a pneumatic distribution valve, a drying machine, a fine ashseparator, a condenser, a steam and water separator, a first blower, a tail heating surface, a dust remover, an induced draft fan and a chimney, wherein the upper part of the incinerator is connectedwith the separator and the tail heating surface respectively; the lower part of the separator is connected with the incinerator and the drying machine respectively through the pneumatic distributionvalve; dried sludge in the incinerator sequentially passes by the fine ash separator, the condenser and the steam and water separator, and then is conveyed into the incinerator under the action of thefirst blower; the tail heating surface is connected with the drying machine through circulating conduction oil, and high temperature flue gas inside the tail heating surface passes by the dust remover, and then is discharged from the chimney under the action of the induced draft fan. According to the invention, sludge drying and incineration are organically integrated, so that consumption of auxiliary fuel during sludge incineration is greatly reduced, and the drying and incineration technology is greatly simplified; and the system has the characteristics of simple operation, wide adjusting range, good control performance, low production cost, and the like.