This paper presents the characteristics of circulating fluidized bed combustion technology. Yuchai that the limited stock of the main problems in circulating fluidized bed boiler, adopted a series of reform measures. modified boiler furnace combustion temperature; Ignition success rate of more than 95% load regulation stable and easy to fire back pressure; reducing furnace wall wear; Key words : energy saving Yuchai shares limited CFB boiler; Existing