In the present work,precise casting of porous biomorphic SiC/C(bioSiC/C)ceramics is achieved by infiltration of liquid polycarbosilane(LPCS)into the carbonized template from pinewood.The morphology of the initial pinewood structure is retained after ceramization without the formation of cracks and other defects.A high compressive strength of 37.23 MPa is achieved when the bioSiC/C ceramized at 1500℃ possesses an apparent porosity of 70 vol%and a density of 0.72 g/cm3.