To help a lost elderly person, it is important to understand the reasons behind the loss. One of the main reasons is cognitive impairment, which causes memory loss and prevents the person from recognizing the way back home. In the eyes of the cognitively impaired, recognizing the way home is not as easy as we think. In the process of identifying the way home, apart from remembering the correct route, the elderly also need to have a sense of direction and recognize the landmarks on the way. Therefore, we need to remind the elderly to recognize the way back home from the above aspects.