As new nonlinear optical materials, several organic crystals such as N, N-dimethyl-p-nitroaniline and 5-methyl-2-nitrobenzoic acid have been grown in the form of crystal fiber from the melts. These crystal fibers with a 100µm core diameter and a 10 mm length generated an efficient SHG of Nd : glass laser. The observed SHG intensities were comparable to that of NBD-cloride crystal fiber.