How to evaluate the integrated economic benefits of weather service is an important and difficult issue.The definitions and calculations of direct economic benefit,relevant economic benefit,indirect economic benefit and complete economic benefit are introduced,then the evaluation models for weather service are proposed based on the input-output model,consumption factor and Leontief inverse matrix.The Shenzhen's weather service in 2012 is taken as an example to test the proposed evaluation model,which leads to some interesting and meaningful conclusions.Due to the internal relevance within industrial system,the weather service brings great relevant economic benefit,indirect economic benefit as well as complete economic benefit to economic development,which deserves more social attention and consideration.The ratio of complete economic benefit versus meteorological input ranges from 134.34:1 to 228.378:1 for Shenzhen's weather service,significantly higher than previous result of 30:1-51:1.The ratio of output versus input is relatively low in conventional industries such as agriculture,forestry,animal husbandry,fishery and building industry,yet it is high in new industries such as research & experimental development service,sci-technology exchange and promotion service,business service,resident service,telecommunication & information transmission,and computer service,which are also the key service targets for future meteorological development.