The average content of Gallium in Bai色minefield is from 12.891 ppm to 4.256 ppm, the content increases from top to bottom with the coal seam.Analysed the Gallium content.it iS conclu—ded that the distribution of Gallium, roughly the content of northeast and southwest area is high, and middle area iS lOW.Using correlation connecient method analyse the correlation between the content of Gallium with the maceral and ash.the content of Gallium has no relevance with coal macerals。and iS positively correlated with ash.The results indicated that Gallium mainly exists in clay minerals.Com. bined with the distribution characteristics, the geology circumstance of the coal and the characteristics of coal quality and coal rock.the accumulation and distribution of Gallium are mainly controlled by the terrigenous clastic, sedimentary environment and groundwater.