///The deep continental lithosphere, which includes the lower crust and the lithospheric mantle, is a very important layer in the earth’s interior.The minerals comprise lower continental crust and lithospheric mantle are mainly nominally anhydrous minerals(NAMs) such as clinopyroxene, orthopyroxene, feldspar, olivine and garnet, and could contain very small and variable amounts of water in the structure as hydrogen-related minor defects. In this study, using Fourier transform infrared spectrometer (FTIR) analysis, the authors obtained the water content of such minerals as clinopyroxene, orthopyroxene and plagioclase in continental lower crustal granulite xenoliths and mantle peridotite xenoliths hosted by alkali basalts in Junan, Shandong Province. In agreement with previous investigations of similar samples from Hannuoba and Nushan in North China Craton, water content of the continental lower crust is obviously higher than that of the underlying lithospheric mantle.