The invention relates to the technical field of power equipment protection, more particularly to an intelligent low-voltage flood-prevention water level control system comprising a GSM flood-prevention protection remote management master station, a plurality of water level monitoring and warning devices being connected with the GSM flood-prevention protection remote management master station and being used for monitoring water levels, a flood-prevention electric circuit breaker and a plurality of short message transceiving modules. The GSM flood-prevention protection remote management master station is able to receive tripping signals from the water level monitoring and warning devices and control the flood-prevention electric circuit breaker to be separated and released. According to theinvention, quick response is carried out and power supply is cut off quickly when a flood arrives so as to prevent secondary losses caused by the power supply; because the separation and releasing, caused by the flood, of the flood-prevention electric circuit breaker are locked and the state is kept, remote opening or closing is forbidden and the operation can not be carried out until delocking isdone, so that re-opening and misoperation-proof closing operations are prevented; and when closing is needed after the flood recedes, the closing of the flood-prevention electric circuit breaker is controlled remotely to guarantee the personal safety.