The differences between green beryls from the Kokotokay No. 3 pegmatite and aquamarines from the Azubai area in Xinjiang were investigated by means of laser Raman spectroscopy. Some conclusions have been reached: ① Gem-grade beryls from Azubai No. 328 and No. 528 pegmatite veins are characterized by high content of TypeⅠchannel water, and beryls from Kokotokay No. 3 pegmatite show interchanging properties. Beryls formed during early crystallization (zone Ⅰ and zone Ⅱ) and in the magmatic system that is comparatively rich in water (zone Ⅳ) feature predominantly TypeⅠchannel water, whereas beryls from the more evolved textural zones, i.e., zones formed at magmatic and magmatic-hydrothermal stages (zone Ⅲ and zone Ⅴ, respectively) comprise mainly TypeⅡchannel water. ② The discovery of cryolite inclusions in Kokotokay No. 3, Azubai No. 328 and No. 528 pegmatite veins indicate that the pegmatitic magmas have a relatively high content of F. ③ The types of channel water in beryls (TypeⅠand TypeⅡwater) and their relative proportions are subject to the magmatic-hydrothermal evolution of the pegmatites as well as the formation conditions. The pegmatitic magma system that is relatively oxidized forms primarily beryl minerals, while the system that is relatively reduced and rich in water is favorable for the formation of aquamarine.