Abstract: The high efficient embedded Internet node expansion was the most foundation work for the development of the next generation in embedded system.In traditional Internet node expansion method,the TCP/IP and fuzzy jump method were used,when the number of nodes was large,it cannot achieve efficient expansion.The extending design of internet nodes with fuzzy pushpin extending method was proposed,before node expansion,the 7 levels model of the node was analyzed,and then the fuzzy pushpin extending function was used to choose the best way,with the optimal expansion method,and the efficient embedded Internet node expansion was achieved.Finally,a team of 20-nodes system was used to test the ability,the experimental result shows that with fuzzy pushpin extending method,the system pushpin is very good,and very it can achieve efficient expansion between nodes,so it has good value for network application.