The invention relates to the technical field of first-aid stretchers, in particular to a portable multifunctional first-aid stretcher based on a folding framework, which comprises a main stretcher support frame, an adjustable backrest is hinged to one end of the outer side of the main stretcher supporting frame through a hinge, a foldable leg supporting
assembly is installed at the end, away from the adjustable backrest, of the outer side of the main stretcher supporting frame, a foot supporting
assembly is installed on the outer side of the foldable leg supporting
assembly, and telescopic moving assemblies are installed on the two sides of the lower end of the main stretcher supporting frame. The adjustable backrest can meet the
sitting posture, semi-
lying or flat
lying requirements of a patient, for example, a patient with dyspnea needs to be in a semi-sitting
lying position, and a patient with
coma needs to be in a flat lying position; the foldable leg supporting assembly can support the lower limbs of the patient,
muscle strain caused by suspension of the legs is avoided, the device is particularly suitable for patients with fracture or
lower limb injury, meanwhile, the foot supporting assembly can adapt to foot postures of different patients and is suitable for patients with
lower limb fracture and
joint injury, pain is relieved through angle adjustment, and secondary injury is avoided.