A method to fill the weight coefficient of the index on cr iterion layer of the AHP model with voting by the public questionnaire is presen ted, and this could avoid complicated matrix calculating, purposed for the evaluating socioec onomic benefit of meteorological service with quantitative analysis. The evaluat ing model takes products of the routine meteorological service and that of the F orecasting Demonstration Projects (FDP) as candidate on the AHP scheme layer, and the weight coefficient is slightly apt to the requirement of the meteor ological service of Beijing 2008 OlympicGames. However, the result indicates that the FDP is much mo re satisfactory than the routine in the needs of the public and that of Olympic Game. It can be concluded that the spatial and temporal resolution of the presen t forecasting products should be promoted relatively according to the public's w ish, and it should enrich the way to transfer the information provided by short time forecasting products, enhance the timeliness of information transfer, and improve the meteorological service quality