Abstract: The basic sintering properties of iron ores were investigated experimentally by miniature sintering setup and pot, and evaluated comprehensively, such as assimilability of iron concentrates, strength of liquid consolidation, fluidity of liquid phase, capability of crystal stock. Then, a rule of reasonable batching by weight for sintering was found and applied to practical production. The results showed that in the sintering process the batching mainly depends on the concentrates B and D mixed with C, while in the pelletizing process the concentrate A is principal in ANSTEEL. The ironmaking technical-economic indices are thus improved obviously after optimizing and readjusting the batching, e.g., the BF utilization coefficient increases by 0.043 (t/m³·d), and the coke ratio decreases by 5.28 kg/t with sinter cost being reduced by 2.2¥/t.