花岗岩-NaF-H2O体系中碱性长石结晶动力学的实验研究证明: 在碱性长石结晶过程中存在成核延滞, 在700℃时延滞时间约18 h, 650℃时约6 h；碱性长石的成核速率和生长速率都随结晶时间而变化, 即它们在整个结晶过程中并非常数. 提出把成核延滞时间引入到成核速率和晶体生长速率计算公式中的新思路, 并由此获得了较为可靠的成核速率和晶体生长速率. The experimental study on the crystallization kinetics of alkaline feldspar in granite-NaF-H2O system shows that there is nucleation delay in the crystallization process of alkaline feldspar. The lag time is about 18 h at 700 ℃ and about 6 h at 650 ℃. The nucleation rate and growth rate of the sex feldspar all change with the crystallization time, that is, they are not constant throughout the crystallization process. A new idea of ​​introducing the nucleation delay into the calculation formula of nucleation rate and crystal growth rate, And thus obtained a more reliable rate of nucleation and crystal growth rate.