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In order to predict future years’ wheat yield in Bengbu city as accurately as possible, the paper is based on the wheat yield data of this area between 1998 and 2010 which presents the change trend close to periodical oscillation, in addition, by adopting sine function transformation GM(1, 1) model, the paper predicts yearly wheat yield from 2011 to 2015 in Bengbu city, at the same time, it compares prediction result with that based on grey GM(1, 1) model as well as true value, whose result shows the prediction accuracy based on sine function transformation GM(1, 1) model is obviously higher than that based on GM(1, 1). This finding is of great significance for ensuring the smooth development of national economy in Bengbu city.

On Prediction and Simulation of Wheat Yield in Bengbu City by Using G (1, 1) Model Based on Sine Function Transformation Type