对四边形网格自动生成方法进行了研究。将目前网格划分效果较好的铺路法进行了改进 ,重新设计了网格生成的总体算法 ,单元由边界向区域内部不再逐层生成 ,而是逐段或逐个生成 ,直至网格布满整个区域。本算法还解决了有关的关键技术 ,其中包括网格交叉处理 ,边界的光滑处理 ,网格的整合和光滑等。最后给出了网格划分实例 ,验证了算法的可靠性和稳定性。 The automatic generation method of quadrilateral grid was studied. The improvement of paving method, which is better in current meshing, has been redesigned and the overall algorithm of mesh generation has been redesigned. The elements are no longer generated layer by layer from the boundary to the interior of the area, but are generated piecewise or one by one until the grid is full The whole area. The algorithm also solves the related key technologies, including grid intersection processing, border smoothing, grid integration and smoothing. Finally, an example of meshing is given, which verifies the reliability and stability of the algorithm.