Low-ignition delayed ignition device

The invention provides a low-ignition delay ignition device, and relates to the technical field of solid rocket engine ignition devices, the ignition device comprises a partition plate igniter, a top seat, an ignition powder box, an ignition powder box heat insulation layer and ignition powder; the top seat is fixedly connected with the ignition powder box; the ignition powder is arranged in the ignition powder box; the peripheral side of the ignition powder box is coated with the ignition powder box heat insulation layer; the top seat is provided with a fire transfer channel; the partition plate igniter is arranged at the end, away from the ignition powder box metal shell, of the top base and generates high-temperature and high-pressure gas which enters the ignition powder box through the fire transferring channel. The combustion time of the ignition powder is reduced by changing the form of the ignition powder, and the instantaneous pressure in the ignition device is improved by controlling the opening area