In the market economy economics results in production is caused of forecasting of the factors, which have an influence on that production. Forecasting in the agriculture production is specific, becouse there is a great influence of natural conditions. The forecasting is a necessary base of planning process. In this paper is, based on analysis of past, using adequate statistic methods, made a forecasting models for movement of the main plant products in Serbia. It was analised harvested areas, yealds and total production of weat, corn, sugar-beet, soya-bean nand sunflower. The forecast models are made, for the sowing areas of plants, based on total production in last year.