The present invention provides an information display device which may simply display a defined information to improve the convenience. The information display device is able to read the member card having the member identification code, and access the member management server storing the plurality of information associated with the user, and display the plurality of information associated with the user. In the member management server, the plurality of information associated with the user is distinguished to be information not requiring to be authenticated and information requiring to be authenticated respectively and then is stored. The information display device acquires the information not requiring to be authenticated from the member management server according to the member identification code under the condition of reading the member card, and directly display the acquired information not requiring to be authenticated without being authenticated by the user.