The integrated equipment of the sodium hydroxide dosing system (skid-mounted pump set) adopts a modular design to reduce on-site installation time. The integrated equipment has a remote alarm function, that is, when a fault occurs, the equipment can automatically remotely alarm the master control room and automatically upload fault records. When the system issues a fault alarm, the personnel on duty can receive the alarm information in a timely manner through the control room, APP, SMS, telephone and other methods, and process it in a timely manner. In daily operation, the on-site sensor signal feedback calculation is used to automatically and accurately add up to achieve less or unmanned management.