Abstract The crystal-rich inclusions (CIs) are a common type of fluid inclusion in granite pegmatite, zabuyelite is the main mineral in spodumance-host crystal-rich inclusion, therefor, the mechanisms for the formation and P-T conditions of zabuyelite provides information about the entrapment conditions of the crystal-rich inclusion. Crystallization experiments were conducted in a hydrothermal diamond anvil cell (HDAC) using Li2CO3-H2O as starting materials . A total of 9 experiments were performed, The results of experiments indicate that the nucleation of crystals started at 550 (±30)℃, and crystals stop quick growth only after cooling 15℃, than crystals growth slow until ended at 400 (±50)℃. The temperature of zabuyelite crystallization concentrate on 550~400℃ have no effect on pressure. In the stability of spodumene temperature range, suggest the zabuyelite in crystal-rich inclusion is the product of direct crystallization of entrapped fluid, rather than the reaction between low-density aqueous carbonic fluid and the host spodumene at the late stage of pegmatite evolution. Zabuyelite experienced a rapid growth only after nucleation, which cased the pressure decrease within crystal-rich inclusion, mainly the main reason for the formation of cristalbalite in crystal-rich inclusion.