本文介绍了基于3DGIS和VR仿真技术构建的三维航标助航系统的方法。该系统实现了基本航标及船舶的定位、查询、增删，给航标增加航距灯罩，增加动态布设航标功能，突显航标的作用。在美观性方面，重点通过加强场景模拟过程中地形和地物细节的渲染，应用Vega Prime 2.1中更新后的天空和海洋模块表现环境效果，采用改进后的粒子系统和L系统，利用OSG图形包进行天气模拟，改进Vega Prime中的天气模拟效果。本文作为优化三维航标助航系统模拟方法的一次探索，为日后系统的深入研究及应用推广打下基础。

This paper introduces a simulation method based on 3DGIS and VR technology to realize aids to navigation. The system achieves positioning, inquiring, adding and deleting navigation mark and ship. To highlight the role of navigation, in the system visual distance of beacon light can be shown and dynamic layout of navigation becomes feasible. In terms of system appearance, the process of rendering details for terrain and other features is strengthened. At the same time, simulate environment by sky and ocean module updated in Vega Prime 2.1, and optimize particle system and L-System to improve weather effect made by OSG graphics package instead of VP. As an exploration of optimizing simulation method in aids to navigation system, this study lays foundation of future in-depth study and promotion in the field of navigation.