Purpose　-　This　paper　aims　to　examine　the　influence　of　organizational　support,　subjective　norm　and　output　quality　on　end-users＇　usage　of　enterprise　resource　planning　(ERP)　in　China.　Design/methodology/approach　-　A　conceptual　framework　is　formed　based　on　technology　acceptance　model　literature.　Data　were　collected　through　a　survey　on　127　ERP　users　in　small-　to　middle-sized　Chinese　firms.　Multiple　regression　analysis　was　employed.　Findings　-　Subjective　norm　and　output　quality　determine　the　perceived　usefulness　of　ERP.　Communication　has　a　significant　impact　on　both　perceived　usefulness　and　perceived　ease　of　the　use　of　ERP,　which　further　influence　ERP　usage.　Research　limitations/implications　-　Future　research　should　consider　the　adoption　of　different　kinds　of　ERP　systems　in　other　countries.　Practical　implications　-　The　findings　may　help　organizations　effectively　use　ERP　and　other　kinds　of　technology　systems.　In　particular,　efficient　training　should　be　a　focus　of　organizational　support　in　systems　implementation.　Originality/value　-　This　study　focuses　on　the　impact　of　organizational　training　and　output　quality　on　end-users＇　usage　of　ERP　in　China.