The core of the flow quantitative control box is the ARM microprocessor, and its measurement and control system is composed of various flow transmitters, sensors (such as turbine, vortex, electromagnetic, and other flowmeters), solenoid valve pump body, etc., which can integrate flow and carry out quantitative control. The man-machine interface and soft and hard protection measures of the flow quantitative control box are excellent. It has simple control operation, high safety performance, good disturbance immunity performance, and stability performance. Flow quantitative control box is applicable for chemical, petroleum, food, medicine, and other industries.