The invention discloses a stretcher support mechanism used under the aviation condition, and relates to the technical field of aviation medical aid. The stretcher support mechanism comprises two standcolumns, an upper crossbeam, a lower crossbeam, two stretchers, supporting arms, lower supporting feet, a safety belt, a power box and a medical equipment rack, wherein the two stand columns are vertically and symmetrically placed; the upper crossbeam is fixedly installed at the top between the two stand columns; the lower crossbeam is fixedly installed in the middle between the two stand columns; the middles and the bottoms of the two stand columns all horizontally stretch out to form the supporting arms; one stretcher is fixedly installed at the upper end of the middle supporting arm; the other stretcher is fixedly installed at the upper end of the bottom supporting arm; the lower supporting feet are fixedly installed at the bottom of the stretcher fixedly installed at the bottom supporting arm; safety belts are arranged at the side walls of the stretchers; the medical equipment rack is fixedly installed at the side wall of the stand column at the inner side; the power box is fixedly installed in the middle of the medical equipment rack; the stretcher support mechanism can be rapidly disassembled, and the purposes of medical configuration conversion, standby and refitting modularization are achieved.