Tea　is　one　of　the　most　important　cash　crops　and　widely　consumed　beverages　worldwide　and　plays　a　significant　role　in　rural　development,　poverty　reduction,　and　food　security　in　many　developing　countries.　Nevertheless,　very　few　empirical　studies　have　analysed　the　comparative　advantage　of　the　tea　industry　in　developing　countries.　Taking　Fujian　Province,　China,　as　the　object　of　a　case　study,　we　carried　out　a　spatiotemporal　analysis　of　the　determinants　of　the　tea　industry＇s　revealed　comparative　advantage　(RCA)　during　the　period　2010-2018.　The　empirical　analysis　relied　on　a　calculation　of　RCA　and　an　estimation　of　a　geographically　and　temporally　weighted　regression　(GTWR)　using　data　from　67　counties　in　Fujian.　The　results　confirmed　that　the　effect　and　significance　of　RCA　determinants　vary　considerably　across　different　spatial　areas　and　over　time.　With　the　exception　of　＇disposable　income＇,　all　other　determinants　had　a　positive　and　statistically　significant　effect　on　a　region＇s　RCA　in　the　tea　industry.　Specifically,　the　results　indicated　that　regional　specialisation　had　the　strongest　positive　effect　on　tea　competitiveness.　Local　governments＇　sectoral　strategies　and　institutional　policies　were　essential　elements　in　building　and　maintaining　regional　tea　competitiveness.　Infrastructure　development,　which　traditionally　went　hand-in-hand　with　urbanisation　processes,　had　a　significant　impact　on　tea　competitiveness.　These　findings　imply　that　competitiveness　of　the　tea　sector　can　be　improved　by　adopting　local　polices　that　support　producers　and　processors　through　fiscal　investment,　technology　provision,　and　capacity　building　as　well　as　measures　to　improve　rural　road　infrastructure　and　link　small　farmers　to　other　actors　along　tea　supply　chains.