The invention discloses a distribution network running state monitoring terminal, comprising a server and a voltage detection unit, a current detection unit and a phase angle detection unit connected with the server, as well as a display terminal, wherein the voltage detection unit is connected with a distribution network, and used for detecting three-phase voltage of the distribution network and sending corresponding voltage detection signals to the server; the current detection unit is connected with the distribution network, and used for detecting neutral point current of the distribution network and sending corresponding current detection signals to the server; the phase angle detection unit is connected with the distribution network, and used for detecting three-phase voltage phase angles of the distribution network and sending corresponding phase angle detection signals to the server; and the server is used for receiving the voltage detection signals, current detection signals and phase angle detection signals, and predicting three-phase voltage information, neutral point current information and three-phase voltage phase angle information according to a preset monitoring equation.