The invention discloses a power distribution circuit for an intelligent power information box in the field of power transmission and distribution. The circuit comprises an environment information collection system, a water level control trip device, a master switch, a lightning protection device, an intelligent electric meter and a communication transmission device, wherein the water level control trip device is connected with the master switch, and disconnects the main switch timely when finding that the water level in the intelligent power information box is higher than the threshold; the master switch is connected with the lightning protection device and the commercial power grid; the lightning protection device is connected with the intelligent electric meter; the master switch is used for connecting commercial power; the lightning protection device is used for carrying out lightning protection isolation between the master switch and the intelligent electric meter to ensure safe operation of the intelligent electric meter; and the environment information collection system is connected and communicates bidirectionally with the intelligent electric meter, is also connected with the communication device, collects read number of the intelligent electric meter regularly, and transmits the number to a remote monitoring platform via the communication transmission device.