In order to improve the wearing properties of the mild steel,in-situ synthesis of TiC-Mo2C particles reinforced composite coatings has been prepared by laser cladding using ferrotitanium,ferromolybdenum,graphite and iron. The microstructure and properties of the composite coatings were investigated by optical microscopy,X-ray diffractometer (XRD),electron probe microanalyzer (EPMA) and microhardness tester. Results indicate that TiC-Mo2C particles were produced by direct metallurgical reaction between ferrotitanium,ferromolybdenum and graphite during laser cladding process. It was also found that the fine carbides are dispersed in the matrix in form of graininess and petaliform. The hardfacing layer with high hardness and good wear properties could be obtained when the amounts of ferrotitanium,ferromolybdenum and graphite were controlled within a range of 30%40%,3%6%,3%4%,respectively.