The invention discloses a direct drinking water membrane purification processing unit control system. The system comprises a central controller, the central controller is connected with an original water tank control module, an original water pump control module, a water quality preprocessing control module, a membrane processing control module, a washing pump control module, a water purifying tank control module, a water purifying pump frequency conversion water supply control module, a network camera, an alarm output module, a monitoring module and a touch screen which are used for achieving functions of information collecting, automatic control, surveillance monitoring, alarming and displaying, and the central controller is further connected with a power interface and a communication interface which are used for connecting a power supply, supplying power and externally communicating. The direct drinking water membrane purification processing unit control system has the advantages of being beneficial for operating and managing a drinking water membrane purification processing unit by adopting a modular centralized control mode, good in maintainability, convenient to manage, high in automation degree and complete in function and capable of improving the reliability, and having remote network monitoring, supervisory controlling and supervising functions.