Abstract: Using tree structure to organize data has the attributes as clear hierarchy，easy to operate，wide range of uses.This paper introduces a method based VS.NET which design and realize the strategy that mass datas fast loading on the Web-based tree structure，through an improved algorithm based on the breadth priority that loading data with tree structure scatteredly according to certain levels and needs，which well solve the problems of inefficiency and delay when mass datas are loading on the tree structure on website，the results of practical application show a desired effect.

摘要： 利用树型结构进行数据组织，层次清晰、操作方便、用途广泛。介绍了一种基于VS.NET技术设计实现的大数据量树型结构数据的快速加载方法，通过一种改进的基于广度优先的算法，将树型数据按照一定的层次和需要，分散地加载于树型结构上，从而较好地解决了大数量的树型数据在网页上树型结构加载时效率低下、延迟较长的问题。该方法在实际应用中，取得了很好的效果。