For the first time, a novel material of La1-x- TexMnO3 (x = 0.04, 0.1), in which the La ions are replaced by the nonmetal element Te in the Chalcogen,has been synthesized. The material has a rhombohedral lattice with the space group of R(3-)c, and Te ions have a tetravalence state. The curves of the resistivityvs. temperature indicate that this material has the property of a metal-semiconductor transition and the colossal magnetoresistance (CMR) effect. The maximum magnetoreistance ratio MR= [p(0)-p(H)]/p(0)is about 51% at 4 T for x = 0.1. Besides, a spin-glassbehavior at low magnetic fields is observed in this compound.