The invention relates to an escalator safety device. A control system comprises a main power switch, a voice broadcast switch, a GPS positioning switch, an emergency brake switch, a voice broadcast module, a GPS positioning module, an LCD display module, an LED warning lamp module, a power module, a single-chip microcomputer module and a speed sensor module. The mechanical system comprises an escalator, an anti-falling type escalator front air cushion device, an anti-falling type escalator rear air cushion module, an emergency brake module and an anti-falling type air bag type handrail module. The escalator safety device integrates escalator running speed abnormality voice alarming, elevator running speed abnormality LED warning, escalator GPS real-time positioning and emergency center interconnection, anti-falling air cushion safety protection, anti-falling air bag handrail safety protection and other functions; the structure is simple, operation is convenient, safety and reliability are achieved, and escalator passengers can be reminded to be careful, slow down in time and pay attention to safety, unnecessary collisions and bruise are avoided, and life safety and property safety of the escalator passengers are effectively protected.