The invention relates to an implementation method based on a nitrate removal water treatment equipment control system. The method is characterized in that an internal network operation control system of nitrate removal water treatment equipment comprises a networking user station terminal, a PLC control cabinet, a water treatment control unit, a water treatment agent regeneration control unit and a water output control unit, and performs interactive wireless data communication through the networking user station terminal and an external network monitoring system. The method comprises the specific implementation steps of 1 starting-up networking control, 2 networking operation control, 3 networking fault obviation control and 4 shutdown networking control. Due to the fact that the implementation method and the internal network operation control system of the nitrate removal water treatment equipment operated with the external network monitoring system in a networking mode are constructed, the operation safety, reliability and operation efficiency of the nitrate removal water treatment equipment control system of a user side can be greatly improved.