Abstract: The elementary morphology of c/v graphite has been studied with unidirectional solidification specimens.The results indicate that the basic part of the branches of c/v graphite is essentialy a compound prism.The "spine line"often revealed under polarized light as the microstructure of the c/v graphite could be explained through our analysis of the structure on the transverse section of the c/v graphite branches by means of polarized light microscopy and TEM.