High-safety power station information acquisition system

The invention provides a high-safety power station information acquisition system. The high-safety power station information acquisition system comprises an acquisition module, a signal conversion module and a terminal server, which are arranged on a power station, wherein the acquisition module is connected with the signal conversion module through a VPN (Virtual Private Network) and a longitudinal encryption device is arranged between the acquisition module and the signal conversion module; the longitudinal encryption device is arranged and a longitudinal encryption secret key is added intoan acquired signal in a VPN transmission process, so that safe signal accessing is realized; the signal conversion module comprises a data acquisition server for converting the acquired signal into ahypertext format, a gateway server for converting the hypertext format into a digital signal and a modulator-demodulator unit for converting the digital signal into an analogue signal; a forward isolation device is arranged be