The　vibration　of　cross　laminated　timber　(CLT)　floor　is　closely　related　to　human-induced　loadings.　However,　research　and　prediction　approaches　regarding　human-induced　vibration　of　the　CLT　floor　have　been　mostly　limited　to　a　single-person　excitation　condition.　This　paper　presents　new　prediction　approaches　to　the　vibration　response　of　the　CLT　floor　under　multi-person　loadings.　The　effect　of　multi-person　loadings　on　the　vibration　performance　of　a　CLT　floor　was　investigated　through　numerical　modelling,　experimental　testing　and　analytical　investigation.　A　finite　element　model　was　developed　through　a　computational　software　to　perform　an　accurate　analysis　of　human-induced　loadings.　An　analytical　model　was　established　to　predict　human-induced　vibration　of　the　CLT　floor　under　multi-person　loadings.　Experimental　tests　were　conducted　to　validate　the　numerical　modelling.　Results　of　both　numerical　modelling　and　experimental　testing　showed　that　the　vibration　performance　of　the　CLT　floor　under　multi-person　loadings　was　almost　double　that　under　single-person　loadings.　Thus,　multi　person　activities　are　more　likely　to　cause　the　occupants　feelings　of　discomfort.　A　method　for　predicting　the　human-induced　vibration　of　the　CLT　floor　under　multi-person　loadings　was　then　developed.　The　measured　response,　numerical　modelled　response,　and　predicted　response　were　compared　using　an　existing　design　metric,　vibration　dose　value　(VDV).　The　results　were　largely　consistent.　It　is　therefore　concluded　that　the　proposed　prediction　method　will　enable　engineers　to　design　timber　floor　systems　that　consider　multi-person　loadings.