Basement rocks from drill cores at the northeastern margin of the Ordos Basin are mainly composed of meta sedimentary rocks. LA ICP MS U Pb zircon dating was conducted on two basement metamorphic rocks and yielded 96 valid data. A two mica plagiogneiss yielded a restricted range of the magmatic zircon ages from 18982 Ma to 20472 Ma, which suggest the possible existences of a Paleoproterozoic intensive magmatic episode. A two mica plagiogneiss and a sillimanite gneiss were overprited by two metamorphic events at ca.183Ga and ca. 178Ga. The ages and characters of the zircons indicate that the basement of the northeastern Ordos Basin had undergone two metamorphic events at Late Paleoproterozoic. The ca. 183Ga metamorphic event indicates the northeastern Ordos Basin joined the final amalgamation of the NCC, while the ca. 178Ga was probably a result of terrane uplift or regional extension.