The invention provides an intelligent cabinet type reactive power compensation device which comprises a control cabinet and a compensation cabinet I, wherein the control cabinet comprises a cabinet body, an instrument panel, a display instrument, an indicator light, an operating button, an isolation switch operating handle and an electromagnetic lock I; the cabinet body comprises a secondary control room I, a secondary wiring groove, an intelligent controller, a high-voltage circuit breaker, an isolating switch and a high-voltage presence indication device; the compensation cabinet comprises a cabinet body II, a wall bushing, a temperature and humidity controller, a digital ammeter, a flow conveying fan, an electromagnetic lock II and a shutter; and the cabinet body II comprises a surveillance camera, a secondary control room II, a vacuum contactor, a lightning arrester, a current transformer, a discharge coil, a capacitor, an insulator and an electric reactor. According to the device, the reliability is higher, the corrosion resistance is better, the temperature inside the device can be detected in real time, and the operating condition of the device can be monitored remotely; the structure of the device adopts a fully closed structure, and the IP protection grade of the device is improved; and modular arrangement is adopted, standardization, serialization and modularization are achieved, and a user can expand the capacity conveniently.