As an ignition and detonated source of weapon system, initiator was an important factor affecting the safety and reliability of weapon systems. From the perspective of insensitive energy conversion component design and selection of protection devices, the latest research development of electromagnetic compatibility design of initiator over the past few years was reviewed. Two methods for improving the immunity of EEDs to electromagnetic environment: adding the protection device to absorb or bypass the energy which coupled from the electromagnetic environment and designing low-firing energy insensitive initiator, were introduced. It was noted that modern microelectronics technology was an effective way to design and prepare the initiator which had advantages of electromagnetic compatibility, large scale preparation, high consistency and high reliability.