In　view　of　the　data　collected　by　a　network　port　in　the　traditional　network　data　transmission　needs　to　take　a　single　DMA　channel　for　transmission,　which　is　a　waste　of　resources　for　the　enlarged　multiplex　network　data　transmission　system.　By　studying　AXI4-Stream,　network　port　IP,　DMA　IP　and　communication　mechanism　of　the　two　IP　cores,　a　AXI4-Stream　based　multi-channel　data　transmission　arbiter　is　designed.　The　arbiter　can　enable　a　DMA　concurrency　to　realize　the　transmission　of　multichannel　network　data.　Through　experimental　comparison,　the　use　of　the　arbitrator　can　not　only　guarantee　the　network　data　transmission　requirements,　and　the　utilization　of　logical　resources　is　only　58.6%　of　the　traditional　one　road　DMA　transmission　one　road　network　port　data　scheme,　which　greatly　improves　the　utilization　of　resources.