Both　Triclosan　(TCS)　and　polyvinyl　chloride　microplastics　(PVC　MPs)　were　applied　in　personal　care　products,　which　can　simultaneously　enter　into　wastewater.　However,　the　effects　of　PVC　MPs　on　TCS　removal　and　antibiotic　resistance　genes　(ARGs)　propagation　in　partial　denitrification　(PD)　systems　were　unknown.　In　this　study,　the　impacts　of　PVC　MPs　on　PD　performance,　TCS　removal,　microbial　community　and　ARGs　in　different　carbon　source　PD　systems　of　treating　wastewater　containing　TCS　were　investigated.　TCS　could　inhibit　denitrification,　but　R1acetate　had　stronger　resistant　to　TCS　than　R2-methanol.　The　addition　of　PVC　MPs　could　promote　denitrification　process　of　the　transformation　of　NO2--N　to　N2　in　R1-acetate　and　R2-methanol.　Moreover,　PVC　MPs　could　benefit　TCS　degradation.　The　main　TCS　removal　pathway　was　degradation　in　R1-acetate　while　it　was　adsorption　in　R2methanol.　PVC　MPs　could　decrease　the　propagation　of　ARGs　in　R1-acetate,　but　increase　the　proliferation　of　ARGs　in　R2-methanol.　Both　intI1　or　intI3　might　be　mainly　responsible　for　ARGs　propagation　through　horizontal　gene　transfer.　Moreover,　the　potential　hosts　of　ARGs　were　Candidatus　Competibacter　and　Defluviicoccus　in　R1-acetate,　while　it　was　Dermatophilus　in　R2-methanol.　This　study　contributes　to　comprehend　the　impacts　of　PVC　MPs　on　PD　systems　of　treating　wastewater　containing　TCS.