Abstract: In order to broaden the utilization ways of coal gasification residual and improve its added value,the basic characteristics of physical,chemical and mineral composition of three coal gasification residuals from Ningmei Group were studied. The results showed that,the true density of gasification residue ranged from 2. 24 g / cm3 to 2. 68 g / cm3,the diameter of most particles were between 0. 4 mm and4. 75 mm. In addition,the amount of residual carbon oxides was effected by coal gasification technology and process. The content of Si O2,Al2O3,Ca O,Fe2O3 in residual fluctuated within the scope of 30% to 51%,14% to 19%,8% to 20%,12% to 23% respectively. The amorphous vitreous was the main crystal phase which accounted for above 67%. The feasibility research of coal gasification residual application in building,fire protect,temperature resistance and so on could find theoretical reference from the investigation of coal gasification residual basic characteristics.