In recent years,wireless sensor networks with sensing,computation and communication abilities have had broad applications in a variety of engineering practice,production process,and daily life.In addition,with rapid progress of micro-electronics and digital signal technologies,discrete digital controllers/filters have been widely used,which has led to the sampled-data issues.To reflect the state-of-the-art of the advances in this emerging area,this paper provides a survey on distributed sampled-data filtering for sensor networks.First,the current progress on distributing filtering methods over sensor networks is reviewed.Then,the study on the control/filtering problems of sampled-data systems based on different sampling schemes is summarized in detail.Subsequently,most recent results on sampled-data distributed filtering problems over sensor networks are highlighted.Finally,a coherent framework on possible research topics is established on the distributed filtering for sensor networks with sampled-data.