A disposable ear probe cover includes a light-transmissive cover body, a flange and a spacer member. The flange is formed on the light-transmissive cover body to surround an opening end of the light-transmissive cover. The spacer member is formed on the light-transmissive cover body. Therefore, when the disposable ear probe cover is sleeved into another disposable ear probe cover which is identical to the disposable ear probe cover, the spacer member of the disposable ear probe cover supports the other disposable ear probe cover so that a void gap is defined between the flange of the disposable ear probe cover and another flange of the another disposable ear probe cover.
