Based　on　TRA　(Theory　of　Reasoned　Action)　and　literature　study　regarding　virtual　teams,　we　conducted　an　empirical　research　on　influential　factors　associated　with　information　sharing　behavior　of　a　virtual　team　and　constructed　a　model　for　studying　virtual　team＇s　information　sharing　behavior.　Taking　advantage　of　an　international　course　of　BOHKNET　as　the　sample　of　a　virtual　team,　we　tested　various　assumptions　related　to　the　model,　verified　the　validity　of　the　model,　which　confirmed　these　influential　factors　further　grounded　on　analyzing　the　data　of　collected　questionnaires.　Subsequently　we　introduced　some　strategies　for　prompting　information　sharing　of　virtual　teams.