A method of manufacturing a composite material applied to a medical stretcher includes: providing a fabric base which has a first surface and a second surface opposite to the first surface； coating a first material on the first surface of the fabric base, and the first material containing an isocyanate crosslinking agent and a polyurethane resin； drying the first material； thermal-laminating a second material on the first material, and the second material containing a thermoplastic polyurethane, a first UV absorber, and a second UV absorber； coating a third material on the second surface of the fabric base, and the third material containing an isocyanate crosslinking agent and a polyurethane resin； drying the third material； coating a fourth material on the third material, and the fourth material containing a modified silicone resin, an octyl tin compound, and a silane coupling agent； and then drying the fourth material.一種用於醫療擔架的複合材料之製造方法，其包括：提供一基布，基布具有一第一表面和一與第一表面相對的第二表面；將一第一材料塗佈於基布的第一表面上，其中第一材料包含一異氰酸酯架橋劑和一聚胺基甲酸樹脂；將第一材料烘乾；將一第二材料熱壓貼合至第一材料上，其中第二材料包含一熱塑性聚胺基甲酸酯、一第一紫外線吸收劑和一第二紫外線吸收劑；將一第三材料塗佈於基布的第二表面上，其中第三材料包含一異氰酸酯架橋劑和一聚胺基甲酸樹脂；將第三材料烘乾；將一第四材料塗佈於第三材料上，其中第四材料包含一變性矽利康樹脂、一辛基錫化合物、和一矽烷偶合劑；以及將第四材料烘乾。
