Abstract: With the increase of load in wireless sensor network，congestion will make performance of network bad quickly. Performance of network will be improved according to introducing a feedback flow control mechanism for wireless sensor network，in which former hop nodes of congestion nodes control flow to control flow rate coming congestion nodes，and the balance of flow rate coming congestion nodes is kept.

摘要： 随着传感器网络负荷的增加，拥塞将会导致网络性能的大幅下降。采用基于反馈的无线传感器网络流量控制机制，通过对拥塞节点的前一跳节点进行流量控制，来实现控制流入拥塞节点的流量大小，平衡经过拥塞节点流量的流入和流出速率，在很大程度上改善了网络性能，提高了网络服务质量。