The utility model discloses a spark gap trigger device and system of cascade compensation accuse guarantor system, include: the communication standard is predetermine in the adoption, sends the protective apparatus of the cascade compensation device of firing command, through first port with the protective apparatus of cascade compensation device is connected, adopts predetermine the communication standard, receive the trigger equipment who ignites is carried out in the firing command to airtight clearance. The utility model provides a spark gap trigger device and system of cascade compensation accuse guarantor system, trigger equipment received after the firing command that the protective apparatus of cascade compensation device sent, not needing to carry on communications protocol's conversion again, just can should instructing and respond by direct read, light a fire to airtight clearance, response speed obviously improves, consequently, can avoid trigger equipment time -delay operation, and efficiency is higher.