In the paper, an attempt is made to develop a simulation model of the dynamica of growth process and yield of rice population. It begins with the simulation of photosynthesis rate of monoleaf. And then it simulates the amount of assimilation, respiration and the weight of dry matter, leaf area index, developmental stages and shoot numbers inricepopulation day by day. At last, economic yield is simulated. The simulation model gives a reasonable fit to the results from field observations. This model can be us...