The invention belongs to the technical field of escape, and particularly relates to a building direct jump type escape device. The building direct jump type escape device comprises a driving mechanism, a second C-shaped spring, a pedal, a triangular block, a triggering block, a limiting plate, a second fixing plate, a first fixing plate, a top plate, a damping wheel mechanism, a first C-shaped spring, a driving gear, a first limiting strip, a second limiting strip, a first rack plate, a second rack plate and the like, when a trapped person steps on the pedal, the pressed pedal enables the driving gear to be meshed with the first rack plate, then the driving gear drives a sliding plate to slide out of a sliding plate groove through the first rack plate, and the trapped person strides over the sliding plate from the pedal and finally directly jumps to an escape air bag cushion from the sliding plate to escape. In this way, the escape time through a traditional escape stair method can beshortened for the trapped person, and the escape probability of the trapped person is greatly increased; and the device is simple in structure and has a good safe use effect.