Based on the non-linear order sequencing filter and the theory of signal grouping, the author proposed the structure of a new kind of non-linear filter-double-value sequencing filter. The main work done includes:(1)proposed the definition and implementation structure of the filter; (2)implementation algorithm; (3)characteristic analysis of the filter; (4)computer simulation of noise image filtering. Theoretical analysis and experimental results show that the filter has a strong ability to restrain pulse interference and it has good edge-holding function. Its hardware implementatin is also easy.