The invention provides an engine timing flameout control circuit. The engine timing flameout control circuit comprises a control unit, a flameout control module and a timing flameout trigger module; when the timing time is arrived, the control unit outputs a control signal to the timing flameout trigger module; and the timing flameout trigger module triggers the flameout control module to control an engine to stop. The engine timing flameout control circuit has such advantages as simple wire connection, low cost, safe and easy operation and unattended operation.