Abstract: Through the observation of the lithofacies structure of low-heat cement clinker， the lithofaciesstructure characteristics of low-heat cement clinker is analyzed，and the batching ratio value of low heat cement，namely , low KH, p value and high n value is introduced and the parameter adjustment of clinker calcining process is analyzed and feed quantity needs to be reduced and the proportion of coal used in the decomposing furnace is reduced, and the proportion of coal used in rotary kilns is increased，and the out-let temperature of the decomposing furnace is reduced. In order to adapt to high n value and produce highly reactive C,S，high-temperature calcination should be maintained in rolary kiln. The heat consumption of calcined low-heat cement clinker is slightly higher than that of calcined ordinary cement. Reducing atmosphere should be prevented for calcined low-heat cement clinker

Key words: ｌｏｗ-ｈｅａｔ ｃｅｍｅｎｔ, ｌｉｔｈｏｆａｃｉｅｓ ｓｔｒｕｃｔｕｒｅ, ｂａｔｃｈｉｎｇ ｒａｔｉｏ ｖａｌｕｅ, ｃａｌｃｉｎａｔｉｏｎ ｓｙｓｔｅｍ