A program guide information providing device is arranged so that reference information corresponding to identification information transmitted from a communication terminal device is read from preference information storage, programs matching the preferences of the user are searched from the program guide information based on the read preference information, searched program guide information is generated from the searched programs, and the searched program guide information is transmitted to the communication terminal device, thereby allowing the user to be provided with program guide information matching the preferences of the user, regardless of the location of the user using the communication terminal device.