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鸡西煤田是我国重要的炼焦煤基地，以鸡西煤田为代表的黑龙江省东部煤级普遍高于东北地区其它同一时代煤级。使煤级升高的诸因素中温度是最重要的，因而本文采用ＴＴＩ法、Ｋａｒｗｅｉｌ图解法和Ｈｏｏｄｌ图解法等来恢复鸡西煤田的古地温场；并将其与镜质组反射率、钻孔实测井温等实际数据相比较，来阐述古地温场特征。结果表明鸡西煤田大部分地区遭受过异常古热流的影响，煤层除了经受深成变质外，还经受了其它变质作用。
Jixi Coalfield is an important coking coal base in our country. The coal rank in the east of Heilongjiang Province, represented by Jixi Coalfield, is generally higher than that of other coal rank in the Northeast. In this paper, the temperature is the most important factor to increase the coal rank. Therefore, the paleotemperature field in Jixi coalfield is restored by TTI method, Karweil diagram method and Hoodl diagram method. The reflectance, Measured well temperature and other actual data compared to explain the ancient geothermal field characteristics. The results show that most of Jixi coalfield suffered from the abnormal paleokraft, and the coal seam has undergone other metamorphism besides deep metamorphism.