本文研究了连续无规网络模型非晶氨化硅纳米粒子的电子结构．研究表明非晶氨化硅纳米粒子具有量子限制效应：能带分裂，最低电子跃迁能量随尺寸减小增大，是一种非晶量子点．无序度增大使能级增宽，价带顶下降．我们把这些结果和实验进行了比较，并讨论了局域长度与量子限制效应的关系． In this paper, we study the electronic structure of amorphous silicon nitride nanoparticles in a continuous random network model. Studies have shown that amorphous silicon nitride nanoparticles have a quantum confinement effect: band splitting, the lowest electron transition energy increases with size decreases, is an amorphous quantum dots. Increase the degree of disorder to enable broadening the price of the top decline. We compare these results with experiments and discuss the relationship between local length and quantum confinement effects.