Graphite C 3N 4 has been produced by pulsed laser inducing the reaction at ammonia solution graphite interface at the first time.Transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) are used to characterize the structure of the graphite C 3N 4.The TEM image of graphite C 3N 4 has been observed,and the theoretical graphite C 3N 4 lattice and the experimental lattice of the interplanar spacings have been compared with each other.