The study adopts literature review, survey, and in-depth interview to evaluate Policy and marketing Effectiveness of 2010 Taipei International Flora Exposition.The study shows the following results:1.86.46% respondents satisfied the overall policy effectiveness of 2010 Taipei International Flora Exposition.2.78.48% respondents satisfied the marketing effectiveness of 2010 Taipei International Flora Exposition.3. The least satisfied item is the traffic and route arramgement (8.2%).4. Literature review and in-depth interviews received same results as survey.