The invention discloses a novel automatic fire-fighting window. The novel automatic fire-fighting window structurally comprises a fixed block, a control chain, a controller, a control switch, a rainwater induction device, a movable window frame, a connecting rack and glass. The fixed block is mounted on the front surface of the movable window frame; the control chain is connected to the fixed block; and the controller is mounted on the front surface of the fixed frame. According to the novel automatic fire-fighting window disclosed by the invention, the rainwater induction device is independently arranged structurally; the controller can be controlled to operate the control chain by operating the control switch; by matching the control chain with the fixed block, the movable window frame can open and close freely; in rainy days, rainwater is in contact with a humidity induction plate, a signal will be transferred to a signal transmitter on a circuit board by the humidity induction plate, and then the movable window frame is closed, the induction sensitivity of the humidity induction plate on rainwater can be adjusted by employing a sensitivity adjustor, and therefore, the convenience of the integral device can be improved, the defects in automatic window closing are made up, and the application range is enlarged.