In the paper, changes of production, consumption, trade and supportive policy of rice in Chna were analyzed by using the data in recent 20 years. The supply and demand trends of rice in 2030 in China were forecasted. For the future, if rice planting area grow at an annual rate of 0.4% and the total production grow at an annual rate of 1.0%, the relationship between supply and demand will be trended more balance and a slight surplus. The author put forward to quarante the red line（i.e. the planting area of 30,000,000 hm2, total rice yield of 200,000,000 t） and make great efforts to increase yield per unit area to ensure the rice self-sufficiency rate more than 95% in China. In order to ensure China rice production and consumption trended to a reasonable interval, the six  guarantee development measures must be implemented.