The invention discloses an electronic detonator ignition energy control method. An electronic detonator safety ignition control circuit is adopted and consists of serial electronic switches in energy storage elements and ignition elements; electronic switches generate ignition signal control by the ignition control logic; the ignition control logic controls the electronic switches to present on-off square waves; the electronic switches control the electricity discharge process of the energy storage elements. According to the invention, through controlling the on-off of a capacity electricity discharge loop, the capacity electricity discharge time is prolonged artificially; the time for receiving the capacity electricity discharge energy by bridge wires is prolonged correspondingly; the ignition capacity of a capacitor can be improved, thereby reducing the volume of a capacitor, and improving the detonation capacity.