Coffee bean grinder and grinding system thereof

The invention provides a coffee bean grinder and a grinding system thereof, and is applied to the technical field of coffee makers, the coffee bean grinder comprises a shell, the shell comprises a processing part and a discharging part, the processing part is arranged above the shell, the discharging part is arranged below the shell, the processing part is provided with a recess, and the recess is used for assembling coffee beans; the program part comprises an adjusting button, a display screen and an internal circuit board, the adjusting button and the display screen are arranged on the processing part and face a user, and the circuit board is arranged in the shell; a grinding member; the application of the weighing module can accurately control the powder output amount, and when a grinding button is pressed every time, the procedure can peel off and reset in time, that is, the weight of the hanging frame and the coffee powder container is removed; the module can calculate the powder output from zero, and po