Abstract: 20 sets of rice populations with the differences of rice yield at 15 levels were set up through the design of three factors: planting density, amount of N-application and the ration of N-fertilizer application in the period of flowering and seed-setting. The statistic analysis of the development indexes of 29 rice populations/individual showed that there was diversity in the development kinds of high-yielding population and the model between the experimental factors and yield/other characters of the population/individual was set up. The development index of population/individual at three yield levels (<7500, 7500-9000 and >9000kg/km2) and the cultivated measure at two yield levels (7500-9000 and >9000kg/km2) were simulated and the establishment and adjustment of technical regulation in the development of high-yield rice population were put forward.