To provide a practical digital information exchanging device which exchanges personal information as digital information from the first and easily makes it a database.

This digital information exchanging device 1 is provided with a storing part which stores and sets a program, a controlling part which performs processing according to the program, a data storing part which stores reception data, a selecting part 7 which selects transmission data among stored reception data, a receiving part 5 and a transmitting part 6, and the program stores reception data which are received through the part 5 in the data storing part, also recognizes transmission data which are selected and determined among reception data by the part 7 and transmits the recognized transmission data through the part 6. Further, it has a displaying part 3 which shows the stored reception data and it is suitable that the part 7 selects transmission data based on the shown reception data.