Abstract: A modular energy-efficient and safety network cabinet comprises: at least one cabinet body; a main blast pipe, used to transfer air between an air-conditioner and the cabinet body defining a recycle way that the air is in from the bottom of the cabinet body and out from the top of the cabinet body; at least one tributary blast pipe, connected the main blast pipe and the cabinet body; a fire extinguisher, disposed above the cabinet body and full with inert-gas; an induction pipe, connecting the fire extinguisher and the cabinet body; a force draft fan, disposed under the cabinet body; a return fan, disposed above the cabinet body; an exhaust smoke valve, disposed above the return fan; a control system, used to control the temperature and humidity of the cabinet body and to put out a fire.