This　study　conducted　pilot-scale　treatment　research　on　actual　pickled　vegetable　wastewater　using　salt-tolerant　bacteria.　The　study　focused　on　the　influent　salinity　as　the　main　variable,　investigating　the　operational　conditions　of　the　treatment　system　and　pollutant　removal　efficiency.　The　pH,　dissolved　oxygen,　and　temperature　of　the　pilot-scale　experimental　apparatus　varied　with　changes　in　influent　salinity.　Under　salinity　levels　of　4,　8,　and　11 g/L,　the　removal　efficiency　of　NH3-N,　COD,　TN,　and　TP　increased　with　the　increase　in　influent　salinity.　This　indicates　that　the　test　bacteria　used　in　the　pilot-scale　experiment　have　a　high　salt　tolerance　and　can　achieve　stable　operation　throughout　the　production　cycle.　Compared　to　the　method　of　microbial　domestication,　the　use　of　mature　salt-tolerant　bacteria　results　in　higher　wastewater　treatment　efficiency.　The　experimental　data　from　this　study,　based　on　pilot-scale　research,　can　provide　guidance　for　the　treatment　of　actual　pickled　vegetable　wastewater.　©　The　Author(s),　under　exclusive　license　to　Springer　Nature　Switzerland　AG　2024.