The invention provides a rescuing method of hand-cranking three-fold stretching bridge type rescue equipment, in particular to emergency rescue equipment which is provided with a three-section foldable platform at the top end of a hand-cranking jack with a telescopic rod and has load bearing and rapid supporting functions for automobile rescue. According to the rescuing method, the hand-cranking three-fold stretching bridge type rescue equipment is adopted. A telescopic rod is arranged between the platform and the hydraulic jack. Three sets of toothed protrusions are arranged in an outer sleeve body of the telescopic rod. By the adoption of the equipment, self rescuing can be achieved through independent operation, and manpower resources, financial resources and time are greatly saved; the equipment supports wheels of a vehicles through the three-section foldable platform on the jack; the telescopic rod further comprises a stretchable or retractable telescopic plate on the rear section, and self rescuing is completed by adjusting the longitudinal and transverse directions of the three-section foldable platform; and longitudinal horizontal movement and transverse horizontal movement of the vehicle can be achieved through the three-section foldable platform, the purposes of safe operation, labor saving and convenient operation are achieved, and the practicability is high.