Engine fuel cut-off control device adopting double-margin framework

An engine fuel cut-off control device adopting a dual-margin architecture can reliably realize a parking function of an engine while increasing complexity of an LPSOV valve structure without adding a redundant electric motor therein, and can facilitate improvement of stability of operating voltage supplied to the valve. Comprising a fireproof switch and an engine fuel oil control switch which are used for controlling an LPSOV valve installed in a wing and an HPSOV valve installed in a nacelle, and the engine fuel oil cut-off control device is provided with two sets of two-way relays and one-way relays which are independent of each other. The engine fuel control switch can be switched between a fuel supply stopping state and a fuel supply permitting state, so that connection and disconnection of the two sets of two-way relays and the one-way relays are switched and controlled through the two power sources independently supplying power, opening and closing of the LPSOV valve and the HPSOV valve are controlled,