EMERGENCY SAFETY APPARATUS

An emergency safety device for a farm master is provided to improve rapidness and convenience for stopping a farm master in an emergency situation. An emergency safety device for a farm master comprises: an ignition coil(40) to generate high voltage current by being connected to an electric power source; an ignition plug(80) established in an engine(90) of the machine, which induces the high voltage current to a central electrode, so that let a flame ignited between electrodes; an electronic unit(20) including a silicon control rectifier connected to a low voltage terminal(43), which conducts switching control on route of current passing through the low voltage current and prevents ignition in the ignition plug from being generated; and an emergency stop button(10) to generate a control signal for allow operation of the electronic unit.