Abstract: The present invention provides a cup with identifiers comprising a cup body, and the cup is characterized in that it further includes a character board and a cup sleeve, first holes into which detachable character blocks can be inserted are distributed in the character board, the cup sleeve encases a lower portion of the cup body, and second holes into which the character blocks can be inserted are distributed in the cup sleeve. The present invention achieves a function of identifying the same cups by covering the cup sleeve outside the cup body and inserting the detachable character blocks into the cup sleeve, so that a user is inclined to distinguish his or her own cup from other persons' cups to avoid wrongly using another person's cup and increase safety of drinking water. Further, the cup sleeve also serves to prevent scald for improving security of use.