Anti-misstepping device of accelerator

The invention belongs to the technical field of automobile driving safety assurance, and discloses an anti-misstepping device of an accelerator. The device comprises an accelerator connecting rod andan accelerator pedal plate, an accelerator handrail is hinged to an automobile, and an accelerator pedal plate is fixedly arranged on the accelerator connecting rod; an anti-misstepping device body ofthe accelerator is arranged between the accelerator pedal plate and a floor of the automobile, an anti-misstepping mechanism of the accelerator comprises a compression air bag, a one-way air inlet valve is arranged at one end of the compression air bag, and an air outlet pipe is arranged at the other end of the compression air bag; the externally arranged anti-misstepping device of the accelerator can be quickly and conveniently installed on the existing automobile, the structure of flexible slow stepping and rigid quick stepping is adopted, and when the automobile is to be emergently braked,and a user wrongly steps o