The un-fired and non-dipped pitch metal-ceramic bonding Al2O3-C sliding plate are developed.The phase composition and microstructure of the residual bricks are analyzed by XRD,SEM and EDS.The results show that the in-site reaction of the added metal Al powder produces a non-oxidized reinforcing phase,and its microstructure is mainly changed from carbon-bonded to non-oxide and ceramic.The non-oxide and carbon of the working layer are oxidized to form a decarbonized layer during use,resulting in loose structure and reduced strength.The hole is enlarged by the casting of high temperature molten steel,and the sliding plate working surface wears due to mechanical friction.The service life of the sliding plate is comparable to that of high temperature fired Al2O3-ZrO2-C sliding plate when used in bulk,which is superior to high temperature fired Al2O3-C sliding plate.