Abstract: In order to study the organic affinity of trace elements in coal from No.10 coal-bed at western Huagou, Guoyang, 10 borehole samples were collected at exploration area of Huaibei mining area. The contents of 12 kinds of trace elements were determined by the inductively coupled plasma mass spectrometry (ICP-MS), the total organic carbon (TOC) of coal was determined by LECO carbon and sulfur analyzer, and the organic affinity of trace elements were deduced from the correlations between contents and TOCs. Then combined with the geochemical characteristics of trace elements and results of X-ray diffraction, the occurrences of trace elements were further researched by cluster analysis. The results showed that the contents of V, Cr, Co, Ni, Mo, Cd, Sb, Pb and Zn were lower than the average of Chinese coal and weren't anomalously enriched, and Be, Cu and Tl were slightly higher. Cd had a strong organic affinity, organic affinity of Co, Zn, Be and Cr was weaker than that of Cd, but V, Ni, Cu, Mo, Sb, Pb and Tl did not have inorganic affinity. The occurrences of V, Sb, Cu, Cr, Pb, Co and Ni were aluminosilicate adsorption; and Cd was associated predominantly with organic matter.