The invention provides an intelligent transformer substation state networked monitoring system. The system acquires state display signals of a circuit breaker energy storage sate/grounding switch separating and closing state and a trolley position state, high voltage live indication signals, environmental temperature and humidity signals, temperature signals of high voltage live bodies, vibration signals of transformers, partial discharge signals of transformer substations and electric power comprehensives parameter signals. The signals are acquired and processed via network signal acquisition devices and then transmitted to DSP controllers. All the signals communicate with a CAN master station via a CAN bus through CAN salve stations by the DSP controllers. The CAN master station communicates with a remote management center. Signal acquisition devices and the network signal acquisition devices are adopted so that signal processing and transmission are accurate and reliable, remote fault analysis is facilitated, and intelligent and networked transformer substation management can be realized.