In　the　soil　environment,　microplastics　(MPs)　commonly　coexist　with　organic　pollutants　such　as　nonylphenol　(NP),　affecting　the　migration　of　NP　through　adsorption/desorption.　However,　few　studies　have　focused　on　the　interaction　between　NP　and　MPs　in　soil,　especially　for　MPs　of　different　types　and　ageing　characteristics.　In　this　study,　non-polar　polypropylene　(PP)　and　polar　polyamide　(PA)　MPs　were　aged　either　photochemically　(144　h)　or　within　soil　(60　days),　then　used　to　determine　the　effect　of　5　%　MPs　on　the　adsorption　behaviour　of　NP　(0.1-4.0　mg/L)　in　soil.　Results　showed　that　both　ageing　processes　significantly　promoted　the　conversion　of　-CH3　groups　to　C-O　and　C--O　on　the　surface　of　PPMPs,　while　PAMPs　exhibited　amide　groups　changes　and　a　reduction　in　average　particle　size　due　to　ageing.　Additionally,　both　ageing　processes　promoted　the　adsorption　of　NP　by　soil　containing　PPMPs,　due　to　an　increase　in　oxygen-containing　functional　groups　and　specific　surface　area.　In　contrast,　the　NP　adsorption　capacity　of　soil　containing　PAMPs　decreased　by　15.4　%　following　photochemical　ageing　due　to　hydrolysis　of　amide　groups,　but　increased　by　21.15　%　after　soil　ageing　due　to　reorganization　of　amide　groups,　respectively.　The　soil-PAMPs　systems　exhibited　a　stronger　affinity　for　NP　compared　to　the　soilPPMPs　systems,　which　was　primarily　attributed　to　the　dominant　role　of　hydrogen　bonding.　NP　was　found　to　be　distributed　mainly　on　soil　particles　in　the　soil-PPMPs　systems,　while　it　tended　to　be　adsorbed　by　MPs　in　the　soil-PAMPs　systems,　especially　in　the　soil　aged　MPs　system.　This　study　provides　a　comprehensive　analysis　of　the　complex　effects　of　MPs　on　coexisting　pollutants　in　soil　environments,　highlighting　the　effect　of　MP　characteristics　on　the　adsorption　of　organic　pollutants,　which　is　essential　for　understanding　the　transport　behaviour　of　organic　pollutants.