The basic method of collecting data for benefit evaluation of public meteorological services is public questionnaire."Shadow Price" is one of the most frequently used methods in benefit evaluation of public meteorological services.Based on 10 430 valid questionnaires from public meteorological service centre of CMA,the benefits of public meteorological services in Beijing,Shanghai and Guangzhou were compared and analyzed using "Shadow Price" method.The results showed that the most significant effect of public meteorological services on the society and economics development was in Beijing,followed by Guangzhou and the last was in Shanghai.Parameter selection of "Shadow Price" and quality of the questionnaires are the two key factors influencing the benefit evaluation result of the public meteorological services.