The utility model discloses a pain scoring ruler, which belongs to the technical field of medical auxiliary equipment, and comprises a scoring ruler main body, a scoring device, a language playing device and a self-drawing expression device, the language playing device comprises a vocal apparatus and a plurality of
electrode contacts, the vocal apparatus is electrically connected with the plurality of
electrode contacts, and the vocal apparatus is electrically connected with the plurality of
electrode contacts. The scoring device comprises an expression scoring
assembly and a scoring scale
assembly, and the color of a scoring plate is gradually changed from light color to
dark color in the scoring scale direction; according to the device, through the scoring device, a patient can quickly and visually understand and identify the general degree of the pain degree, and meanwhile, the device is suitable for young children and patients who cannot report by themselves and are scored through behavioral observation, so that the patient can more easily understand or judge the severity of the pain in combination with common sense of life; the device is also suitable for illiterate and expression patients through a language playing device, and the pain degree can be understood by pressing corresponding pain values to carry out language
broadcasting.