This dissertation selects Beisu coal mine as the studied area. First

the geographical location of the Beisu coal mine and basic geological is briefly described. Then through the basic data and two of the drawing software AutoCAD and Surfer

17# coal seam thickness

ash yield

sulphur content

moisture and volatile are studied and mapped out. Results show that: 17#coal seam thickness can be divided into thin seam. Its horizontal distribution is that it is thin at the centre part and becomes thicker and thicker to the outside wavily. The ash content can be divided into low ash coal

the lowest part also locates at the centre part of the coal mine. From the centre to the east and the west

it increases and then reduces symmetrically. And there is an abnormally high point at the southwest area. The sulfur content can be divided into high sulfur coal

the highest part locates at the centre part of coal mine

from the centre to the east and the west

it reduces symmetrically. The lowest part of the moisture content locates at the centre part of coal mine

from the centre to the east and the west

it increases symmetrically.The Volatile content distribution is stable each direction. The conditions for the coal seam into coastal transition

the sedimentary environment into coal seam coal character very much

and the lateral changes more uniform.