With the rapid advancement of industrial modernization and urbanization in China, the demand for efficient, safe, and environmentally friendly disposal of fluorine-containing sludge has become increasingly urgent. This study explores the feasibility and technical advantages of co-processing fluorine-containing sludge in cement kilns. Taking a 4 500t/d new dry-process cement kiln of a company as an example, a technical analysis was conducted, and a co-disposal process scheme of “pretreatment - metering - blending - kiln incineration” was designed. Research indicates that this process achieves reduction and harmless disposal of fluorine-containing sludge while simultaneously solidifying heavy metals, suppressing acidic substance emissions, and avoiding secondary pollution. In practical operation, when fluoride?containing sludge is added at a ratio of 0.5%~1.5% of raw materials, the coal consumption can be reduced by 1.0~2.0kg per ton of clinker. The 3d and 28d compressive strengths of clinker are increased by approximately 2.61% and 1.38%, respectively, with a slight increase in output. The emissions of fluorine and chlorine meet the requirements of national standards, achieving both environmental and economic benefits.