基于Unity中的Terrain工具进行游戏开发，可以方便快捷地生成一个满足游戏需要的三维地形。在介绍Terrain工具的基础上，提出了一种基于Unity的游戏地形生成方法。实例证明，该方法简单有效，可以满足一般游戏地形建模的需要。(Unity based on the Terrain tools for game development, you can easily and quickly generate a three-dimensional terrain to meet the needs of the game. On the basis of introducing Terrain tools, a method of terrain generation based on Unity is proposed. The example shows that the method is simple and effective, and can meet the needs of general game terrain modeling.)