On base of the compare of the main three algorithms CD,DD and FD for data mining in distributed system,that FD algorithm has less Web communication cost and more flexibility is summarized.

• 在对分布式关联规则挖掘的三种主要算法:CD算法、DD算法及FD算法的原理及实现步骤进行详细的阐述的基础之上,得出其各自的优缺点,并指出FD算法在网络通信效率和算法灵活性方面更具有优越性。