The invention provides a pickling and phosphating automatic continuous production electrical control system which is composed of a master station and multiple slave stations. The master station is composed of a programmable controller PLC, a 5GHZ radio station I and a touch screen and arranged in a ground master control room. Each slave station is composed of a 5GHZ radio station II, a network adapter and an IO module and arranged on a line pickling trolley. The master station and the slave stations form a wireless ethernet of the star structure, wherein connection is realized through wireless signals and the programmable controller PLC acts as the core. When the line pickling trolley arrives at the working position, the sensor arranged on the line pickling trolley obtains the signals and wirelessly transmits the signals to the programmable controller PLC of the master station. The programmable controller PLC judges the working position of the line pickling trolley according to the received signals and transmits a corresponding instruction to the line pickling trolley to control operation of the line pickling trolley. The control system is simple in structure and accurate in control.