本文采用助熔剂籽晶提拉法生长出了Nd :KGW激光晶体。利用光学显微镜对晶体表面进行观察、并拍摄到晶体裂缝、生长丘、生长条纹和包裹物等缺陷的照片。分析其原因 ,是由于晶体生长工艺的不稳定 ,尤其是晶体生长过程中的温度梯度不够合适、提拉速度过快、降温速率偏快等所致。并由于生长体系粘度较大 ,容易形成包裹 ,晶体包裹物经XRD分析认为其中主要是熔体。 In this paper, a flux crystal pulling method was used to grow Nd: KGW laser crystals. The surface of the crystal was observed with an optical microscope and photographs of defects such as crystal cracks, growth mounds, growth streaks, and inclusions were taken. Analysis of the reason is due to the instability of the crystal growth process, especially the temperature gradient in the crystal growth process is not enough, pulling speed too fast, the cooling rate is too fast and so on. And due to the viscosity of the growth system is larger, easy to form a package, crystal wrapping by XRD analysis that is mainly the melt.