The invention relates to a flour production system. The flour production system comprises a grain storing silo, a first section material lifting machine, a wheat sorting screening machine, a second section material lifting machine, a wheat peeling device, a third section material lifting machine and a millstone flour mill, which are arranged in sequence. A discharging end of the grain storing silo is connected with an input end of the first section material lifting machine, an output end of the first section material lifting machine is connected with an input end of the wheat sorting screening machine, an output end of the wheat sorting screening machine is connected with an input end of the second section material lifting machine, an output end of the second section material lifting machine is connected with an input end of the wheat peeling device, an output end of the wheat peeling device is connected with an input end of the third section material lifting machine, and an output end of the third section material lifting machine is connected with an input end of the millstone flour mill. The flour production system is simple in structure and scientific and reasonable in design. According to the flour production system, the flour production process and the processing process are integrated together, the high integration of flour production is achieved, the time and the labor are saved, plenty of manpower and material power are saved, the working efficiency is improved, and the product quality level is improved.