A display control apparatus operable to display an operation of a robot comprising: an obtaining unit configured to obtain measurement information of a processing target that includes at least one of the robot and a target that the robot operates; an emphasizing unit configured to generate emphasized display information that emphasizes a feature of a portion of the processing target, based on the measurement information; a composition unit configured to generate composite display information in which the emphasized display information and non-emphasized display information other than the emphasized display information are composed; and an output unit configured to output the composite display information to a display unit.