Cold bonded briquettes process is a green preparation technology of low-carbon metallurgical charge,which has become an important way to promote the high-quality and efficient utilization of by-products or solid waste resources in the metallurgical industry and promote green transformation due to its outstanding characteristics such as strong raw material adaptability,flexible process adjustment and low energy consumption. Therefore,the preparation process of cold bonded briquettes from blast furnace return fines is studied, the appropriate raw material ratio is found, the metallurgical physicochemical properties of briquettes are investigated,and the changes of various technical and economic indicators of Liangang No. 6 blast furnace (2 200 m³ ) under the 3% briquettes ratio are analyzed. The results show that the briquettes have good cold and hot strength,and the furnace conditions of blast furnace are stable during industrial application,and the relevant indicators show a positive trend,the blast furnace utilization coefficient is increased to 3. 28 t/ (m³·d),the air permeability index is increased by 3. 06%,and the converted pig iron cost is reduced by 2. 07 yuan/ t,which plays a positive role in reducing carbon and cost reduction in blast furnace ironmaking process. The conclusions can provide a potential practical path for the high-value utilization of iron-containing by-products such as return fines.