Users＇　product　recommendations　in　virtual　communities　(VCs)　play　an　important　role　in　social　commerce,　that　is,　e-commerce　activities　and　transactions　made　via　the　social　media　environment.　We　proposed　a　moderated　mediation　model　based　on　social　exchange　theory,　to　explore　the　role　of　effects　of　belonging　to　VCs,　guanxi　capital,　and　trust　propensity　on　users＇　intention　to　recommend　products　in　VCs.　We　tested　the　model　with　317　members　of　WeChat　groups　in　China.　The　results　show　that　guanxi　capital　positively　mediated　the　link　between　sense　of　belonging　and　intention　to　recommend.　Further,　the　relationships　between　sense　of　belonging　and　guanxi　capital,　guanxi　capital　and　intention　to　recommend,　and　sense　of　belonging　and　intention　to　recommend　were　all　significantly　moderated　by　trust　propensity.　Our　findings　provide　insight　into　users＇　decision-making　process　when　recommending　products　in　VCs,　and　have　implications　for　social　commerce　managers　promoting　products　in　VCs.