A human body fat measurement device having a disinfection function comprises a measurement device body (1), a measurement electrode (2), and an ultraviolet ray disinfection device (10). The ultraviolet ray disinfection device (10) comprises a first electromagnet (3), a second electromagnet (4), an ultraviolet light coil (5), an iron hoop (6), and a micro battery (7). The first electromagnet (3) is connected to the micro battery (7) by means of a first control switch (8), and the second electromagnet (4) is connected to the micro battery (7) by means of a second control switch (9), and the ultraviolet light coil (5) is connected to the first control switch (8) and the second control switch (9). The first electromagnet (3) and the second electromagnet (4) are fixed on the measurement device body (1), and the measurement electrode (2) is fixed between the first electromagnet (3) and the second electromagnet (4), and the iron hoop (6) is slidably sleeved between the first electromagnet (3) and the second electromagnet (4). The ultraviolet light coil (5) is disposed on an inner surface on which the iron hoop (6) and the measurement device body (1) are in contact, and the ultraviolet light coil (5) produces ultraviolet rays to carry out ultraviolet ray disinfection on the measurement electrode (2). The human body fat measurement device can automatically carry out ultraviolet ray disinfection on the measurement electrode (2), thereby achieving the effect for killing bacteria remaining on the measurement electrode (2).Un dispositif de mesure de graisse corporelle humaine ayant une fonction de désinfection comprend un corps de dispositif de mesure (1), une électrode de mesure (2), et un dispositif de désinfection par rayons ultraviolets (10). Le dispositif de désinfection par rayons ultraviolets (10) comprend un premier électro-aimant (3), un second électro-aimant (4), une bobine de lumière ultraviolette (5), un arceau de fer (6), et une micro-batterie (7). Le premier électr