The invention discloses an automatic coarse cereal food flour mill with an automatic weighing function. The automatic coarse cereal food flour mill comprises a coarse cereal food flour mill main body and a coarse cereal food flour mill controller. The coarse cereal food flour mill main body comprises a frame, a casing, a feeding hopper, a stirrer, a stirring propeller, a stirring breaking cutter, a cutter head, a weighing plate, multiple weighing sensors, a filter sieve, an electric vibrator, a material outlet, a power adapter and a battery socket. The coarse cereal food flour mill controller comprises a singlechip, a voltage conversion circuit module, a crystal oscillation circuit module, a reset circuit module, a data storage circuit module, grinding starting and stopping keys, a clock circuit module, a signal processing circuit module, a LED, a stirrer driving device and a vibration control relay. The automatic coarse cereal food flour mill has a simple structure and a reasonable design, is convenient for implementation, has a low cost, can be operated conveniently, is healthy and environmentally friendly, has high milling efficiency, good effects and good practicability and is convenient for promotion and application.