Embodiments of present disclosure relate to an apparatus and a method for separating objects. The apparatus comprises: a separating mechanism configured to separate objects arranged in a stack; a robot configured to hold the separating mechanism; and a controller configured to: cause the robot to move the separating mechanism to a first height; cause the robot to move the separating mechanism towards the stack; in response to a distance between the separating mechanism and the stack reaching a distance threshold, cause the robot to stop moving the separating mechanism; and cause the separating mechanism to separate the objects.