A guide deviation detection device for elevators that can improve accuracy of detecting that an ascending and descending body has deviated from a correctly guided state is provided. The guide deviation detection device for elevators includes a base provided in an ascending and descending body, a contact maker that is provided in the base to be adjacent to a long object positioned with an ascending and descending direction of the ascending and descending body set as a longitudinal direction, does not come into contact with the long object to take a reference posture when the ascending and descending body is in a correctly guided state, and comes into contact with the long object to change a posture from the reference posture when the ascending and descending body deviates from the correctly guided state, and a detector detects that the contact maker changes the posture from the reference posture.