Abstract: In order to develop modern agricultural weather service and enhance the ability of meteorological services for farmers, the paper expounded the definition, principles, business content, technology method and work process of modern agricultural weather forecast, and discussed relative issues, such as the vocational work limits, timeliness of forecasts, key regional business, based on the demand of the general agriculture, which covering agriculture, forestry, animal husbandry, sideline and fishery. The paper pointed out modern agricultural weather forecast service based on the relevance of agricultural production and the weather, optional principle of farming activities, and improvement of weather forecasting capacity, and the character of the service was changed as follows. Firstly, integration of weather forecasting was emphasized, which included agrometeorological indicators 〖JP2〗and evaluation techniques rather than agrometeorological forecasting only. Secondly, serving was extended to for forestry, animal husbandry, fisheries and agricultural facilities apart from for crops. Thirdly, higher capacity for weather forecasting, including occurring time, place and number. Fourth, quantitative and objective was improved because of support of modern information technology and business systems. The paper suggested that the agricultural weather service should definite the work limits, focus on regional characteristics and focal point of the work, and pay more attention to the timeliness and usefulness of business products.

Key words: Modern agricultural weather forecast, Definition and principles, Business content, Work method