Disclosed in the present invention is a bed board for a diagnostic bed, the diagnostic bed comprising: a supporting device, which supports the bed board; a bed frame, which bears the supporting device; and a driving device, which drives the bed board to move relative to the bed frame; wherein a material of the bed board comprises basalt fibers. Also disclosed in the present invention are a diagnostic bed comprising the bed board, a medical apparatus comprising the diagnostic bed, and a method for manufacturing the bed board. The bed board for a medical apparatus according to the present invention has characteristics such as a high tensile strength, and being anti-magnetic, insulating, environmentally friendly, resistant to acids, alkalis and high temperatures, and having a simple manufacturing process. The use of the bed board broadens the range of bed board materials which may be chosen, improves the image quality of the medical apparatus, improves the overall performance indices, and lowers costs.